*KeyFeatures *Premium Materials: This roller chain sliding door kit features heavy-duty steel wheel frames paired with high-quality, wear-resistant rubber wheels and sturdy steel track rollers. Capable of supporting doors up to 600 lbs, its ideal for large sliding doors. The galvanized rust-resistant treatment ensures long-term durability without corrosion. *Tight Fit Design: The serrated structure enhances wheel-frame alignment, providing stability even on sloped or uneven surfaces, ensuring consistent safety and performance. *Versatile Compatibility: Precisely designed to fit door frames and tracks ranging from 32-42mm (1.26 - 1.65in), this sliding gate kit is perfect for shops or warehouses with varying door sizes, suitable for multiple settings like courtyards and storage areas. *Smooth Operation: The sealed bearing design of the track rollers and casters ensures smooth, silent sliding. Resistant to corrosion, water, and dust, it reduces friction and noise during daily use, extending the gate roller system's lifespan and reducing maintenance needs, ultimately boosting efficiency. *Easy Installation: Complete with all necessary components, this kit is easy to install, even for beginners, saving you time and effort. ******************************************************************************************************* *Specifications Item Model Number: GKIT6 Product Dimensions: 144.3 x 305 mm / 5.68 x 12.01 inch Net Weight: 15.1 kg / 33.31 lbs Material: Wheel Material: Rubber SBR; Bracket Material: Q235A Caster Outer Diameter: 145.8 mm / 5.74 inch Maximum Load Capacity: 600 lbs Compatible Caster Door Frame Pipe Outer Diameter: 32-42 mm / 1.26 - 1.65 inch Compatible Steel Column Outer Diameter: 41-55 mm / 1.61 - 2.17 inch Compatible Column Outer Diameter: 41-73 mm / 1.61 - 2.87 inch ******************************************************************************************************* *Pakcage Content 6-Inch Casters x 2 Caster Bracket x 1 5-Inch Steel Pipe Track Wheels x 2 Track Brackets x 6 Latch x 1 User Manual x 1