IMPROVED SECURITY: This adjustable combination deadbolt adds a 4-digit code to the sliding door lock, providing high-quality security for interior and exterior applications. KEYLESS SECURITY: The door lock is a combination of 4 digital adjustable metal wheel locks that offer 10,000 combination codes, eliminating the need to worry about keys. DURABLE: This lock is made from sturdy metal and installs in just minutes using the one-way screws included with the lock. The body of this locking device also features a rust-proof coating that will last for years Easy to install: Combination bolts feature sliding bolts, giving users multiple options when installing hardware of sliding fence, so you can choose to install flush or flush. Wide range of applications: this is the perfect locking solution for home and workshop gates, sheds, barns, fences, iron gates, wooden doors and child-proof cabinets. Note: The data are all manually measured, please allow 1-3 error cm Due to differences in light and display, there may be color differences, please refer to the actual item received.