Cups opener bracelet

This is just a copy of a real tool that works very well to open any hard to open glass tumbler or bottle, but I wanted to give some gifts, so I created the digital version and it works very well too!

OPERATION: Simply insert the bracelet onto the cap of the jar and close the block, then unscrew with great grip.

PRINTING: The only precaution is to use a flexible material, the softer it is the better it works ;)