Alpine Swiss RFID Blocking Men's Leather Spring Loaded Money Clip Wallet Genuine Leather Measures 4 3/8" x 3" x 1/2" (empty) 9 credit card slots including an outside one for easy access. Spring Loaded money clip (Classic money clip) Comes in Alpine Swiss Giftbox. RFID PROTECTED: Certified Independent Lab Tests in Met Labs Santa Clara, CA facility. Secure your personal data for credit card RFID Chips operating at 13.56 MHz Frequency while allowing use of 125 KHz Proximity Cards such as ID badges, hotel cards & some transit cards.