Probrico Flat Black Privacy Door Knobs, Keyless Interior Knobs for Bedroom Bathroom, Round Ball Bath/Bed Door Knobs,4 Pack

APPLICATION:Round black door knobs are used for interior doors Bedroom/bathroom.When locked inside, the lock could be opened outside with coin without keys

Steel Adjustable Latch:The interior door knobs have solid adjustable universal latch - 2-3/8" or 2-3/4", Fit doors thickness 1-1/4 inch to 1-3/4 inch.

Dimensions of bedroom door lock: Knob Diameter: 2.09"(53mm),Rosette Diameter: 2.56"(65mm). Note : The square plate of the latch is unremovable

Easy Intallation : Easy to install with all accessories included. The easy installation makes for a one-person project. It fits both right and left handled doors.

High Quality: Probrico door handles are conformed with ANSI Grade 3 Security. Metal construction adds strength, security and durability

Probrico privacy door knob sets lock from the inside with a thumb turn and unlock from the outside with a little coin hole. Bathrooms, bedrooms, and other locations where a locking door is wanted but a keyed cylinder is not required are ideal places to use privacy knobs. Specification: Adjustable backset of 2-3/8 inches or 2-3/4 inches (60mm or 70mm). Door thickness: 1-3/8 inches or 1-3/4 inches (35mm-45mm). Reversible knob diameter: 2.09 inches (53mm). Handing: left, right. Rosette diameter: 2.56 inches (65mm). Easy to install: All you need is a screwdriver and a little time for installation. The majority of installations for this set should take under an hour, and it is made to suit typical prep doors. High quality: ANSI Grade 3 certified, indicating outstanding performance across a variety of residential applications. To give you superior security, this product has been made with top-notch components.