【High-Quality Material】 The sliding gate wheels are made of high-quality galvanized steel, sturdy, durable, corrosion-resistant, and waterproof for long-term use. 【Superior Stability】 The double roller bearings ensure stable and smooth gliding, facilitating easy gate operation for both indoor and outdoor use. 【Easy to Use】 Fixed top for easy rope handling and smooth-rolling pulleys for proper rope guidance. Save time and effort. 【Ergonomic Design】 Fixed top for easy rope handling, smooth roller for good rope guidance, strong and durable cylindrical head to prevent rope tangling. 【Improve Work Efficiency】 V-groove steel swivel pulley. Widely used in automotive manufacturing and other automated production lines and various general mechanical equipment.