Our Auto Safety Master Opener is a clever tool to open 5 types of lids cleanly, safely and easily– cans, ring-pulls, fizzy drink pull-tabs, metal crown tops and screw bottle tops. The self-locking Auto Safety function enables easy opening of cans and does not leave any sharp edges. Automatically attaches itself to cans. Leaves no sharp edges. Opens items with little effort. Opens cans, bottles, pop, pull tops and more. Hygienic – opener never touches the contents of the can. Durable - stainless steel mechanism. Metal cans: Place opener on top of can and turn knob clockwise until you feel the mechanism engage. Turn the knob clockwise to open the can. After a full circle, you will feel less resistance. Stop – can is open. Turn the knob anti-clockwise until the can is released. Use mini-pliers to lift lid cleanly and easily. Ring pulls: Push the hook under the ring, rock backwards and open the can. Fizzy drink pull tabs: Turn opener over and push the end under the tab. Press upwards to open the can. Metal crown tops: Place the opener over the bottle top and turn to the side. Plastic bottle tops: Place the 'eye' over the plastic lid and turn to open.