TThe Draft Top’s patented design uses 4 rotational blades to safely remove the top of most 8-16 oz aluminum cans. The blades sit inside the rim of the can and use pressure to split and fold the lid as it turns. When used properly, the Draft Top does not leave any sharp edges, so you can enjoy your drink worry free. Once the top is removed, you can enjoy your beverage straight from the can with more aroma, create cocktails/garnish your drinks right in the can, or pour into your favorite glassware without all the foam you're used to. Whether used as a beer can opener, soda can opener, or general topless can opener, The Draft Top is the patented original. Accept no substitutes in a can opener bar tool!