Wide Compatibility: The door knobs set fits doors 1-3/8" to 1-3/4" thick and features an adjustable latch for 2-3/8" to 2-3/4" backset. It's suitable for most standard doors. Please confirm your door size before purchase

Durable All-Metal Construction: Crafted with a solid all-metal lock body, this round door knob offers excellent corrosion and wear resistance. Built to withstand daily use and tough conditions, it ensures long-lasting performance

Dual Privacy Functions: The privacy door knobs feature keyless exterior access for quick entry, with an emergency access using a coin or flat metal object. Inside, a simple thumb-turn allows easy locking, providing reliable privacy and peace of mind

Easy Installation: No need for complex tools or professional skills—just a screwdriver is all it takes. This ball door knob is quick to install, saving you time and effort. Note: Screws are pre-set in the handle—please remove them before installation