BCP 10pcs Debit/Credit ID Card & 5pcs Passport RFID Blocking Protector Sleeves Package included: 10pcs ID card sleeves+5pcs passport sleeves ID card sleeve outside size (L x W): 3 5/8 x 2inches, Inner size (L x W): 3 1/2 x 2 1/2inches. Passport sleeve outside size (L x W): 5 1/4 x 4 1/8inches, Inner size (L x W): 5 4/16 x 3 7/8inches. The aluminum shielding protects your passport from reader or scanner, against the risks of Identity theft.