Aspire Credit Card Bottle Opener Fits Wallet, Various Colors-Silver-6 pcs Made of heavy duty stainless steel, practical and durable Easy to use, handy and convenient to open beer bottle caps; small hole in the corner for keyring Size similar to a credit card -- measures approx. 3-5/16" long by 2-3/16" wide and 1.5mm thick (8.5cm x 5.5cm) Fits in pockets and most wallets; Great for parties, weddings, or as a gift idea for promotion projects.