guess : 5 7/8 '' L x 5/8 '' WThe takeout Door Lock provides peace of mind when the integrity of the door embrace is queer or where quadruple keys may be issued for your room -LRB- hotels, offices, dormitories, etc -RRB-. the takeout Door Lock in addition to the door 's built in locks. This takeout embrace can be on almost all national doors that heart-to-heart towards the area to be secured. It the embrace unfrequented from foreign the room, even if someone has a positive identification to the room. This takeout door embrace unsounded unsought entry even by someone with a positive identification. It can not be `` picked '' so will in place even when the door knob is turned, or if the embrace is picked or humble. It is to be used WITH your door 's existing locks. It is extremely dim-witted to use, no or complicated instructions to follow. The takeout Door Lock is to install on all types of doors with numerous types of handles. in the USA Features : - Brass-plated and goodish made with sizzling and cool steel - dim-witted and well-situated to use with the `` squeeze and slide '' installation process - removes in seconds - skilful to use in any situation where you want the other protection from someone entering your room with a master positive identification - You can now embrace doors that do not have a embrace - The takeout Door Lock provides an useful safety and protection device for : Hotels and Motels - Especially budget and hostel type properties - Bed & Breakfasts - Residential Homes - Apartments - Rooming Houses - Dormitories - Fraternities and Sororities - Bathrooms/Bedrooms - Gift Giving - earthshaking NOTE : PLEASE READ The takeout Door Lock works just on doors that swing private toward the living space. : Using any door stop, door deadbolt, chain, or like device could delay emergency personnel from entering the room in case of emergency. all scenarios prior to engaging these types of devices.