The Master Lock Compact Safe is the perfect solution for 'on-the-go' security. It is ideal for cars, trucks, dorms, campers and boats, or trips to the beach. It is designed to secure cell phones, wallets, keys, iPods, GPS units and other compact but expensive items that are especially vulnerable to theft. The safe has a programmable digital lock which comes with an override key, making entry into the safe secure yet simple. For added safety, it has an all-steel construction and a steel tethering cable. The soft interior lining protects contents from scratching and damage. Requires 4 x AA batteries (not included). Specification Exterior Dimensions 74 x 254 x 201mm. Interior Dimensions 48 x 249 x 180mm. Interior Volume 2.17 Litre. Weight 1.5kg.