This floor guide can be used in most sizes of sliding door panel. In the bottom of the floor guide, there is a groove which can protect the floor from scratching by the screw. This sliding door floor guide fit for most of the door. The liner is strong, reducing the collision between the base and the glass. Features - Color: Silver. - Material: Aluminum Alloy. - Size: 6.00X4.30X2.40cm/2.36X1.69X0.94inch. - Manufactured with aluminum alloy, ensures anti-rust and years of longevity. Protects doors from scratching and ensure smooth sliding. - This sliding glass door floor guide fit for most of the sliding glass door. - Premium aluminum coated surface ensures and years of beauty and longevity. Stylish appearance, ultra hard sturdy. - It is manufactured with technology to ensure the of the product and can work for a long time. - This product can greatly fix your sliding glass door on the correct position. Package list: 2 x floor guides