Credit card size bi-fold with rfid identity protection. Each pocket holds 3 cards. The O-ring allows you to attach this to a DayMakers HipSafe, ShoulderSafe, or virtually any bag using the included Optional Leash / Wrist Strap. Dimensions: 5.5" x 4" (open) , 2.75" x 4" x 0.25" (folded) , Weight: 1 oz. Material: Nylon twill, polyester lining , Easy care wipe clean textile. (Machine washing will disable rfid protection.) OK to use fabric protectant.