How to use this can opener
1)Open handles until the blades and gears can be inserted into the edge of the can.
2)Clamp the iron can with gears and blades,until the blade is cut into the can lid.
3)Hold tight handles, turn the knob clock-wise, and keep the blade twirling untile the can is totally opened.
4)Finally remove the lid (To prevent the lid from falling into the food, leave a connection as needed)