Specification Brand : Fafeicy BulletPoint1 : SILENT OPERATION: The pulley uses deep ball bearings to ensure smoothly operation without generating any noise. BulletPoint2 : EXCELLENT PERFORMANCE: Our 8 wheels trolley assembly have impact resistance and galvanized properties, providing rust and . It also has a sturdy bearing steel pin shaft in the pillar channel. BulletPoint3 : WIDELY APPLICABLE: The pulley assembly used for household moving doors, wardrobe cabinets, large iron doors, curtains, automation equipment pulley assemblies, factory track pulleys, etc. BulletPoint4 : CARBON STEEL MATERIAL: The pulley is made of high strength carbon steel, with high hardness, robustness, and impact resistance. CNC accuracy machining technology, full penetration welding. Two 8 wheel trolley components with a load capacity of up to 2700 pounds. BulletPoint5 : STRONG STABILITY: Assembled using an 8 bearing wheels with welded bearings and pin shafts, it has stronger stability and is to use. Color : SILVER ExternallyAssignedProductIdentifier : 5449228756620 IncludedComponents : 2 x Trolley Assembly ItemName : 2Pcs 8 Wheels Trolley Assembly, Silent Stable Carbon Steel 2700 Pounds T Pulley Assembly, for Curtain Cabinet ItemPackageDimensions_Height : 16 centimeters ItemPackageDimensions_Length : 22 centimeters ItemPackageDimensions_Width : 17 centimeters ItemTypeKeyword : beam-trolleys LoadCapacity : 450.0 pounds Manufacturer : Fafeicy Material : Iron Material1 : Alloy Steel Material2 : Iron ModelName : Fafeicymq03skp7v2 ModelNumber : Fafeicymq03skp7v2 NumberOfItems : 1 PartNumber : Fafeicymq03skp7v2 ProductDescription : Specification: Item Type: 8 Wheels Trolley Assembly Material: Carbon Steel Application: used for family activity doors, wardrobes, large iron doors, curtains, automation equipment pulley components, and factory track pulleys.