Features Durability: Crafted from robust carbon steel and high-grade stainless steel, this trolley assembly rollers offers outstanding durability and longevity, resisting impacts, deformation, fading, rust and erosion through consistent use. Smooth Operation: Equipped with high-performance bearings, the trolley assembly rollers ensures a secure and stable connection, enabling smooth, efficient motion and minimal operational noise, ideal for both professional and DIY applications. Precision Engineering: Utilizing advanced CNC processing, each trolley assembly rollers boasts a smooth, no burr finish, with evenly distributed stress points, ensuring not only an aesthetically pleasing look but also structural integrity. Versatility: With its universal design, this versatile trolley assembly rollers is perfect for various applications, from ceiling-mounted systems to electric lifts, providing flexibility for creative DIY projects and professional solutions alike. Enhanced Functionality: The 2 wheel trolley assembly's galvanized rollers guarantee exceptional rust resistance, maintaining the unit's smooth, efficient functionality and high hardness even in demanding environments. Features: 1. Heavy Duty: Trolley assembly is made of strengthened carbon steel and stainless steel, sturdy and reliable, impact resistance, hard to break, deform, fade, rust and erosion, withstand long term use. 2. High Performance: The bearing trolley roller is safe and reliable, with tight connection and stable performance can ensure smooth operation and reduce noise. 3. CNC Process: Forged by CNC tight process, the surface is smooth and no burrs, with uniform stress, beautiful appearance and smooth design. 4. Versatile to Use: Trolley assembly is suitable for a wide range of different usage scenarios and is ideal for mounting on a ceiling trolley system or electric lifts, you can also use it in DIY projects according to your actual situation. 5. Stable Running: The 2 wheel trolley assembly roller is galvanized to ensure the rust resistance of the wheeled trolley. Smooth surface, good coordination and high hardness. Specification: Item Type: Trolley Assembly 2 Wheel Material: Carbon steel, stainless steel Color: Silver Uses: Can be used for family activity doors, wardrobe cabinets, large iron doors, curtains, automation equipment pulley components, factory track pulleys Package List: 1 x Trolley Assembly 2 Wheel Package List 1 x Trolley Assembly 2 Wheel