Product details:

Programmable electronic lock with 2 user codes. 20 override keys included. Steel tethering cable. Durable solid steel construction. Automatic 20 second time delay after 3 incorrect entry attempts helps to keep out unauthorized persons. Lightweight & easy to transport. Efficient size for luggage: Briefcase or backpacks. Easy grip handle. Soft interior. Uses 4 "AA" batteries. 0.8 cuft capacity. Interior dimensions: 1.9" H x 9.8" W x 7.1" D.