HabiStat Vivarium Lock
Easy to install, it locks two sheets of sliding glass in a vivarium or cabinet.
Reversible, it can be used on either side of the glass and is supplied with two keys.
Available in two sizes.
Installation instructions: The ratchet arm screws to one part of the glass (no drilling required) and the lock body slides along the arm to butt up against the edge of the front sliding door. Turn key to lock or unlock.