Umbra Metallic Bungee Credit Card Case, Black (480565-040) Bungee Credit Card Case by Umbra Wallet constructed of RFID-blocking aluminum to protect credit cards and IDs from information theft Pocket sized card case holds a variety of cards; slim design fits neatly in your pocket; bungee opening feature allows for quick easy access Measures 4 Inch by 3 Inch by 1/2 Inch Designed by Andy Logan/BMW Group/Design Works USA