Feature 1Heavy Duty: Trolley assembly is made of strengthened carbon steel and stainless steel, sturdy and reliable, impact resistance, hard to break, deform, fade, rust and corrosion, withstand long term use. 2High Performance: The bearing trolley roller is safe and reliable, with tight connection and stable performance can ensure smooth operation and reduce noise. 3CNC Process: Forged by CNC tight process, the surface is smooth and free of burrs, with uniform stress, beautiful appearance and smooth design. 4Versatile 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. 5Stable 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.SpecificationItem Type: Trolley Assembly 2 WheelMaterial: Carbon steel, stainless steelColor: SilverUses: Can be used for family activity doors, wardrobe cabinets, large iron doors, curtains, automation equipment pulley components, factory track pulleys .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Trolley Assembly 2 Wheel