The Klein Bottle is a mathematical joke: a surface with only one side. This one opens bottles with ease and style.

Built to last in steel, with a design that fits just right in your hand, it's the perfect finishing touch for any math fan's kitchen.

Yes, it really opens beers!

Klein not-a-bottle-opener is here.


IN: 1.768 w x 1.575 d x 3.105 h
CM: 4.49 w x 4 d x 7.886 h


Sign In or Join to comment.
Absolutely beautiful bottle opener!
May 23, 2014, 5:53 pm
We're featuring this product on our homepage today. Enjoy!
December 4, 2013, 9:54 am
Absolutely unique!
July 31, 2013, 11:05 pm
Very nice design, I hope to see more of this.
July 14, 2013, 8:16 pm
@henryseg That's a feature, son.
July 13, 2013, 4:08 am
@Bathsheba Yeah, but they're closed as well as being open.
July 12, 2013, 9:36 pm
Klein bottles are already open.
May 5, 2013, 6:48 pm
It opens Klein bottles? ;)
May 4, 2013, 7:36 pm
@Bathsheba after what felt like eons of coveting the one we have at the office, I finally bought this for myself...SO NICE!
January 30, 2013, 1:56 pm
Nice work, this design is also in the top ten most viewed 3D printed designs of 2012!!!
December 28, 2012, 4:37 pm
This is awesome!
September 17, 2012, 4:11 am


We're sorry to inform you that we no longer support this browser and can't confirm that everything will work as expected. For the best Shapeways experience, please use one of the following browsers:

Click anywhere outside this window to continue.