Material: Made of solid galvanized steel, and dual nylon rollers is long-lasting and sturdy for ensuring long term use Gate assembly support: Guide Roller Accessories are designed to prevent the door from falling off the track and improve performance. The bracket can be modified to face up or down as needed Easy installation: Gate Assembly Support is easy to install, the sliding gate hardware is fixed with bolts and is easy to install on the column wall Widely used: L Rear Post Bolted Bracket is able to be used for most types of sliding or rolling gates and fences Package includes: L-shape bracket*1, nylon rollers*2, and bolts and nuts*2. Welcome to our store! We will continue to update our products. Thank you for your attention and have a nice day. Specifications: Material: Nylon Package Contents: 1 Set of Sliding Gate Guide Rollers Note: 1. Please allow slight errors due to manual measurement. Thank you for your understanding. 2. Due to the different monitor and light effect, the