Inner Tube RFID-Blocking ID FoldA folding ID wallet made from repurposed truck tube on the outside and bike tube on the inside. Different tubes, same second life. Two inner pockets, a card slot, an ID window, and enough room for up to 15 cards plus a couple of folded bills. RFID blocking built in, because your credit cards have been through enough. Handcrafted. Tough. Made from things that used to go places. Measurements: 6. 5" x 4", or 4" x 3 when folded.