[Manual Locking Tongue - Safe and Reliable]This mechanical keyless lock requires manual locking/unlocking for complete security control. Unlike automatic locks, you can choose when to engage -duty locking tongue to you're not accidentally locked out. [Convenient Single-Sided Keypad]No need to enter a password from the inside-simply turn the handle for easy entry and exit. Ideal for high-traffic areas (such as offices and warehouses) for frequent access. [Please Check Door Spacing Before Purchasing]Only suitable for doors with a spacing of 60 mm (2.36 inches) (not compatible with 70 mm/2.75 inch doors). The adjustable handle is suitable for left- or right-opening doors (thickness 35 mm to 50 mm). Not suitable for glass doors. [Flexible Security Settings]Set a 4-7 digit numeric password (letters/numbers) for secure access. No need to keys in sequence-simply the "C" key first, then enter your password. We recommend using a 7-digit password for maximum security. [Access Mode - Temporary Free Access]Switching to Access Mode disables the keyboard, allowing keyless entry without a password - perfect for parties or moving items. Switch back to Secure Mode when needed. Color: Black Material: Zinc Alloy Package Contents: 1set * combination lock Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.