BESTTEN Keyed Entry Door Knob, Heavy Duty Entrance Door Lock, Matte Black | Easy Installation, Universal design

Easy Installation: Ball 3-bar lock design; simple DIY setup with clear instructions, no professional help needed Premium Quality: Tested to 250,000 cycles; stainless steel handle, brass mechanism, matte black Universal Fit: Fits 2-3/8" (60mm) / 2-3/4" (70mm) backsets and 1-3/8"–1-3/4" (35–45mm) door thickness; compatible with left/right-handed doors Locks purchased separately will be keyed different. Includes 3 keys per set Safety & Durability: Lockable on both sides; stainless steel handle with reinforced steel structure and anti-collision cylinder for long-lasting security