General description This Lock Size 60/70mm features a round design and is made from durable aluminum alloy, making it suitable for various applications including bedrooms, locker rooms, storage rooms, and offices. It provides keyed entry and security for both exterior and interior doors. Technical specifications Material: Aluminum alloy Cylinder material: Brass Round hole diameter: 50-62mm Adjustable latch distance: 60mm or 70mm Suitable for door thickness: 35mm to 45mm Usage This door lock can be bolted on the inside or locked on the outside. When bolted on the inside, it can be unlocked by the key from the outside.