[Size]: Cylinder: 18mm x 35mm, panel: 26mm x 53mm, anti-collision panel: 34mm x 53mm. [Material]: The ball door bumper is made of stainless steel and brass, sturdy and durable, anti-rust and anti-corrosion. [Adjustable]: Adjust the appropriate distance by adjusting the distance between the ball bearing lock and the baffle. Durable tension maintains spring rebound. [Application]: Adjustable Ball Bearing Latches for Internal French Doors Wardrobe is suitable for all kinds of invisible doors, cabinet doors, flat doors, cabinet doors etc. [Installation]: Equipped with screws, the ball retainer is installed on the top of the inner door, which is embedded in the drilled hole on the upper surface. The strike is mounted on the door frame and the spring loaded ball locks and holds the door closed.