Adjustable Stay Roller Floor Guide Barn Door Floor Guide Stay Roller(Spraying Black) Features: 1. This product does not require drilling on the floor; our barn door roller guides are specifically designed so that the bottom bracket of the barn door is completely flush with the floor so that it can be installed quickly and easily. 2. In combination with the countersink, the grub screws will be flush with the bracket to prevent protruding and scratching the beautiful barn door. 4. The product is made of the most durable steel to ensure indoor and outdoor reliability; and the black powder coating 5. Surface prevents rust and protects steel 6. Guarantees a smooth slide. You can enjoy a quiet and smooth slide every time. Also, the roller guide is fully adjustable, so you can use it with almost all the brands of barn doors.   Specification: Condition: Material:Carbon steel Approx Size:11 x 7 x 4cm/4.33 x 2.75 x 1.57inch Package weight: Approx.450g   Package list: 1 x Bearing Body 8 x Accessories   Note: 1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.