No hardware needed. The Oyster is the ultimate leather wallet for the minimalist in all of us with three specific card slots and a large compartment for even more storage—plenty of room for dollar bills and extra cards in this compact fold-over wallet design. Pearls not included! * 3 credit card or ID slots * One large compartment for additional cards and cash * Signature structured leather * Dimensions: 4.25" W x 2.85" H x 0.5" D