Combination Cam Lock, 4 Dial, Black, 2-Pack 10,000 possible combinations high security combination cam lock Combination cam lock can be set in a few easy steps with no special tools needed Ability to install in non-resettable mode and retrofits any standard cam lock Comes with 5/8 cylinder length that fits a material thickness up to 3/8 Perfect for mailboxes, healthcare, education, gyms, school lockers, drawers or doors