Go swing can opener is a new type of bar beer/drink open tool with innovative design that can safely remove the top without leaving sharp edges.You can easily add ice cubes, lemons and other what you like to the jar.Pull down the handle of the can openers handheld and Insert the four metal slices of the can opener into the top of the can(must sure the four metal slices insert to the top of can at the same time ). Then grasp the edge or bottom of the can, then squeeze the handle and rotate the go swing topless can opener, then align the edge with the handle notch, and shake the topless can opener slowly to open the top of the canThis go swing can opener smooth edge manual is sturdy and durable, with a small size.