bottle opener Keychain 1)material:zinc alloy 2)logo type:printing, ... such as gold, imitated gold, silver, antique silver, copper, chrome, nickel and finishing are available etc. 4. Logo: Engraved, embossed, debossed ... , 60mm, 70mmdiameter etc (custom size is accepted) 6. Thickness: Normally 3mm, 3, 5mm, 4mm, 5mm etc(up to customer's request ...