Faux suede Thermo PU;Three pocket RFID smartphone wallet; RFID pocket protects the integrity of your electronic personal data on credit cards etc; Each pocket holds approx 1 card; Includes removable 3M™ adhesive back for placement on back of smartphone, cell phone or mobile device; RFID = Radio Frequency Identification; Product Size: 2.55" w x 4.3" h x 0.15" d;