The Liquid Wallet features two slots to carry your essential items which you can select from our range of accessories including USBs, bottle openers, LED light (coming soon), refillable ink pen (coming soon) or you could even hold your keys! Comfortably holds 6 cards. The precisely measured premium elastic strap ensures your cards and cash are held firmly in place. Even a single card on its own won't slip from rigorous shaking. Being machined from aluminum 6061, the wallet offers RFID shield to protect your credit cards. Car remotes, key fobs, pendants or other accessories can be attached to the key ring attachment.