Prevents Key Access For Knob Locks & Padlocks

Patented lock which installs instantly over door knob to block out all existing keys. Hinged; clamps over exterior knob in clamshell fashion. Useful for changes in tenants and employees, during lost key emergencies and as a travel lock. Can also be used to block out keys from many standard size padlock styles (those which have a body height less than 1-7/8").

Made of high strength aluminum alloy with a durable powdercoat finish. 2-7/8" diameter; overall length 4-1/4". Orders for multiple units are supplied keyed alike (keyed different locks are available by special order). Silver gray.