The Knockout: Ultimate Beer Bong Attachment

Purchased this as a birthday gift (knowing I could take full advantage of this as well). My friend LOVES it so that's a huge plus. As previous reviews state, the bowl is a bit small but as a prototype it's super cool. It works and does it's job. It's a little difficult to clean because everything is so narrow but rinsing it right after use does the trick (as far as beer goes). Must be used with glass bottles. Gravity bong didn't work out too well but that may be trial and error. Awesome device to look like a pro at chugging ;)

I love this thing. It makes for loads of fun. Visit the KO website to see the video of all the things it can do. Be safe when using it, but have fun!! This product will make for a great time!!

I was not happy with this for the cost- the use as a single hitter is there- but it is certainly something you could do on any piece of metal tube. The quality for the cost seems super off. You can get one but I don't suggest it.

Bought for my boyfriend, and he cannot get enough of this! loved the carrying case and how smooth the hit was, a little bigger than a one hitter, but has plenty of space to pack it full. very easy to use and feels like the actual thing to him. attaches extremely easily to any size bottle top, as long as it isnt a large mouthed one, besides this he loves the portability and stability of the attachment! would definitely recommend and buy again! :)

Unless you're a pro at slamming, the beer just flushes out the weed part

Got for friend he loves but never used

It is AWESOME! Loved it, friends loved it, it's a challenge that not everyone can do which makes it that much more interesting. There would be done adjustments that can be made like the screen isn't all that. But It's in progression i hope. Love it though.

The one-way valve...totally isn't "one-way". It works alright as a beer-bong, or as a regular (if somewhat crappy) water-pipe, but it is absolutely horrible at the "knockout challenge". Beyond that, the bowl clogs very easily, and the design makes it quite hard to clear after a gravity hit. It's an interesting idea, and an amusing novelty, but it honestly kinda sucks in terms of functionality. Hopefully, the makers of the product will make an improved version, but until then...I recommend that you save your money and pass on the Knockout.