The door guide is made of black steel, and it is safe and sturdy. It is suitable for sliding barn door, easy to use. The door guide can be used repeatedly and durable for long time use. Features: Made of black steel, safe and non-toxic, sturdy and durable. The door guide is suitable for sliding barn door, easy to use. Comes with the 8 different installation method, and you choose the suitable method to install the door guide. Reusable and durable: the door guide can be used repeatedly and durable for long time use. It is a useful accessory for door, which can keep your barn door safe and prevent scratching your barn door. Specifications: Condition: 100% Brand New Material: Black Steel Color: Black Size: approx. 12.5*5.3*6cm/ 4.92* 2.08* 2.36in Weight: approx. 541g/ 19.08oz Package List: 1* Door Guide a Set of Installation Accessories Note: 1. Please allow 0-2cm error due to the 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.