【Round Ball Door Knobs】8 Locks per package(for eight doors); Can be Locked inside by the turn button unlock outside with emergency pin or coin. 【KEYLESS Door Lock】Privacy handle without key, Best use for Interior Door/ Guest rooms/Bathroom/Bedroom and other privacy needs. 【For All Standard Door】Door Handles are suitable for all USA Standard doors. A Good Replacement for upgrade old door or new house installation(Recommended to buy with other function) 【Easy Installation】 Easy to install with all accessories included. The easy installation makes for a one-person project. It fits both right and left handled doors 【More Feature】Adjustable latch to fit 2 3/8" or 2 3/4" backsets. Fits on 1 3/8" to 1 3/4" thick doors.Confirm with ANSI Grade 3, Exceeds 200,000 cycles
