With the TSA approved luggage lock, security forces can check and reseal luggage without damaging the lock. Set your own three-digit combination lock, the TSA lock is ideal as a luggage or backpack lock. The travel lock is constructed with a metal housing for durability and a vinyl covered cable for resistance to misuse by baggage handling equipment. The lock case is 30mm wide, the shackle has a diameter of 3mm, length of 38mm and width of 16mm., Weight: 0.75 pounds, Manufacturer: Master Lock