This thing is a bottle opener. The thing 403031 I have printed was to small to grip the caps we are using. But the additional insert used with the single arm lever was ok. . I wanted a fingerfriendly handle so I put two things together and added a cap. Remixed from the insert found here: http://www.thingiverse.com/thing:403031 and the torso taken from here: http://www.thingiverse.com/thing:22709 It had to be heavily modded but the credit goes to the mentioned makers.Update: added new file with exactly circular round opening/insert. Allows easier adaption for other inserts of different size. One handle file with support, in case of your slicer wan't generate it (Cura perhaps).I have printed the insert already. Thats whay I made the parts separated and glued them together. You may print the opener as one part as well. Look for the first file.