Material: stainless steel Silver Dimensions: internal diameter 20 mm Supply : 5 * corkscrew Just put your hand on the bottle, put the cork under the ring and quickly, if the corkscrew is missing, it will never get stuck, save the dentist bills and cut the key. A truly amazing innovation hugs your fingers and lets you open the lid like magic. The unique ring design beer bottle opener is simple and with the practical corkscrew, you can open the bottle at any time, without a corkscrew, it will never get stuck again, saving on dental costs., wine and cans with you. Squeeze your fingers so you can open magically lid. Ring design is easy to use. read to open beer bottles, handy. carry.