Travelambo RFID Blocking High Capacity Mens Wallets Trifold 100% full-grain leather Inside & Out; Measures 4 1/4" x 3 1/8" x 1/2" closed empty; RFID Blocking Wallet: Tested for 13.56 MHz Frequency in which the credit cards operate.125 KHz Proximity Cards, RFID signals are NOT blocked; 6 card slots, 1 clear id window, 2 utility pockets, 1 billfold pocket; 1 YEAR WARRANTY, our warranty covers any defect caused during product production and delivery. We can offer you full refund or free replacement, whichever is at your most convenience.