Each slim wallet has integrated RFID protection technology to keep your cards and personal information completely secure. The sleek leather exteriors are handcrafted with premium Dutch/German top-grain leathers and tanned under gold-rated LWG environmental protocols. With its card-slider mechanism, you will have everything you need right at your fingertips. One-click of the trigger and your six frequently used cards are ejected for easy access. To ensure you and your wallet never get separated, created a solar-powered Tracker Card, which allows for two-way ringing, separation alerts, and worldwide Crowd-GPS. This ultra-slim tracker only needs 3 hours of sunlight to last for two months and allows you to ring your phone or wallet as well as track it on a map.