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Cisco Digital Network Architecturestyle'box sizing: border box; padding: 0px 0px 4px; margin: 0px; text rendering: optimizelegibility; font weight: 700; font size: 18px; line height: 24px; color: rgb(15, 17, 17); font family: "Amazon Ember", Arial, sans serif;'About the Authorclass"a section a spacing small a padding small" style'box sizing: border box; margin bottom: 0px; color: rgb(15, 17, 17); font family: "Amazon Ember", Arial, sans serif; padding: 6px 10px ! important;'Tim
style'box-sizing: border-box; padding: 0px 0px 4px; margin: 0px; text-rendering: optimizelegibility; font-weight: 700; font-size: 18px; line-height: 24px; color: rgb(15, 17, 17); font-family: "Amazon Ember", Arial, sans-serif;'About the Authorclass"a-section a-spacing-small a-padding-small" style'box-sizing: border-box; margin-bottom: 0px; color: rgb(15, 17, 17); font-family: "Amazon Ember", Arial, sans-serif; padding: 6px 10px !important;'Tim Szigeti, CCIE No. 9794, is a principal technical marketing engineer within the Cisco Enterprise Networking Business (ENB) team. In this role, he collaborates with customers, the field, engineering, Cisco IT, and third-party technology partners to drive the development of industry-leading network analytics solutions. In his more than 20 years with Cisco, Tim has authored/co-authored five generations of Cisco QoS Design Guides, four Cisco Press books, an IETF standard (RFC 8325), and multiple patents. Additionally, Tim has been inducted into the Cisco Distinguished Speaker Hall of Fame Elite, representing the Top 1 percent of Cisco speakers of all time. Dave Zacks is a distinguished technical marketing engineer within the Cisco ENB team, focused on network architectures and fabrics, network hardware and ASIC design, switching, wireless, and the many and diverse technologies under the enterprise networking umbrella. Dave is based in Vancouver, Canada, and has been with Cisco for 19 years. Dr. Matthias Falkner is a distinguished technical marketing engineer within the Cisco ENB team. He currently focuses on the evolution of enterprise and service provider network architectures, and in particular on end-to-end architecture solutions involving virtualization. Matthias is currently helping to drive the Cisco automation strategy for enterprise networks (including DNA Center). Matthias also holds responsibilities in branch virtualization and in the definition of the cloud exchange architecture. Prior to his role within ENB, Matthias was the lead TME architect for the Cisco ASR 1000 Series routers. He has also held positions in product management, and served as a product line manager for the Cisco 10000 Series routers. From 2000 to 2005, Matthias was a consulting systems engineer in the Deutsche Telekom account team with Cisco Germany. Matthias holds a PhD in Systems and Computer engineering from Carleton University, Canada, and an MSc in Operations Research & Information Systems from the London School of Economics and Political Science, UK. His technical interests are in the area of performance characterization of virtualized networks, high availability, and service chaining. Simone Arena is a principal technical marketing engineer (TME) within the Cisco ENB team and is primarily focused on enterprise network architecture and on all things related to wireless and mobility. Simone is based in Italy and is a Cisco veteran, having joined Cisco in 1999. Throughout the years, Simone has covered multiple roles at Cisco, starting as a software engineer working with Catalyst switching platforms, to consulting system engineer in the field, to TME within different teams (Enterprise Solution Engineering, Wireless Business Unit, and now ENB).Shipping Notes
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4.9 ★★★★★
Based on 647 reviews
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Product Reviews
★★★★★ 4
Great product but choose a size or two up
Size: Large (Pack of 1), Product Packaging: Standard Packaging
Nice quality toy for long lasting and engaging play! One star docked for the sizing—I don't usually expect to need an xl anything for my 45lb border collie but he cant even fit his canine teeth into the large size to ease the jerky reward out in "hard" position but "easy" position he doesn't even tough the toy just grabs the jerky. Got an XL and it has been great for the jerky both easy and hard positioning. The larges I keep around for liquidy and frozen treats to keep the mess contained and they work very well for that.
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Reviewed in the United States on July 12, 2025
★★★★★ 5
Truly for Aggressive Chewers
Size: Large (Pack of 1), Product Packaging: Standard Packaging
Excellent product for aggressive chewers. The black Kong doesn't last forever BUT it is the most reliable toy I've used with my 60# pitt mix. I've returned so many toys that were advertised as for this girl's level of enthusiasm that I no longer buy anything else.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Great toy
Size: Large (Pack of 1), Product Packaging: Standard Packaging
Solid toy
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Reviewed in the United States on June 1, 2026
★★★★★ 5
Great for Excessive Chewers and Eaters
Size: Large (Pack of 1), Product Packaging: Standard Packaging
I decided to get the Kong Extreme toy for my then 9-year-old dog in Sept. 2010, after her older sister passed away a few days before. I figured we both could have used the distraction.
I learned ages ago that most toys couldn't hold up against my two Australian Cattle Dogs, since they didn't just happily gnaw on things, they'd try to eat it. In fact, they tried to eat a number of things, from fabrics to meticulously eating the lining off tennis balls and soft balls. Nothing was safe, especially against the youngest, who has some OCD issues. I'd be lucky to see a tough toy last a day, much less a month.
Like the rest, I didn't think this toy would stand a chance, but it's still holding up well almost a year later. My dog isn't a strong chewer, like a doberman or pit, but very meticulous. She and her sister would go at something for hours if you let them, until nothing was left. Because of this, I also need to choose soft toys, rather than something hard, because she'll wear her teeth down if you let her. Fortunately, this manages to stand up to her obsessive chewing, but it also doesn't wear the teeth down, which I love.
I'm thinking of getting a new one, even though the current could probably last another few months. I'm just now seeing some wear along the seams, despite her every effort to conquer and destroy it. I'm mainly getting it just to be on the safe side, so that I don't risk it falling apart while I'm not watching her, and just for the sake of cleanliness.
These are extremely durable and easy to clean. They do have a strong odor when you first open them up, but it fades relatively quickly. I let ours soak it in hot/vinegar water for a while, then rinsed it well and left it out in the sun for a few hours. Seemed to help a little. They can also be loud when dogs chew on them, which can be annoying if you're trying to watch TV, but I find it well worth it, even if my partner doesn't agree during football time.
I love the fact that these toys bounce unpredictably, although I would be careful around furniture if you plan to bounce it off the floor or toss it. I got into the habit of using it down our long hallway, referring to it as Dog Bowling, which she loves. She also didn't need food as incentive to get into it (just me playing with it and making it out to be a big deal), which is great, since that just means less cleaning and less weight gain in my book, although I do put treats in it now and then, if my partner and I are leaving the house and plan to be gone awhile.
My dog's around around 30 lbs. and is medium sized, but has had no trouble tackling the larger-sized version, which was the only size available through Amazon at the time. I may get the medium-sized toy soon, just because she's reaching 10 and she'll go at it for ages.
This is a great toy for obsessive chewers in particular, and I highly recommend it to dog lovers. I just wish we'd found out about them sooner! I'm also happy to report that she has stopped chewing on random things), like blankets and clothing, as much as she used to. If she does start up, it's because she can't find her Kong. I may also get the bone version and will review on that if I do.
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Reviewed in the United States on August 28, 2011
★★★★★ 5
Great buy
Size: Large (Pack of 1), Product Packaging: Standard Packaging
Definitely recommend. My new rescue has chewed though I can’t even tell you how many “indestructible” toys in under 10 minutes. Not this! We’ve had it a few days and she loves it. Hasn’t chewed through it at all and it literally keeps her busy for an hour at the minimum. Would buy again. Great quality for the price and made to last. Perfect for aggressive chewers.
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Reviewed in the United States on April 8, 2026
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