Specification Brand : Jauarta BulletPoint1 : STABLE AND Trolley assembly using welded bearing and pin of 4 bearing, more stable, use BulletPoint2 : NOISELESS BEARINGS: Trolley assembly uses deep groove ball bearings to ensure that you can operate smoothly without any noise BulletPoint3 : LOAD BEARING AND IMPACT : Each four wheeled trolley assembly has a design load of 550lb. The roller trolley assembly is made of impact solid alloy steel BulletPoint4 : ALLOY STEEL: U shaped pulley assembly is made of solid alloy steel with high strength, and easy cleaning BulletPoint5 : WIDELY USED: Trolley assembly can be used in home trolley doors, wardrobe cabinets, large iron doors, curtains, automatic equipment pulley assembly, factory track pulleys Color : Red + Black ExternallyAssignedProductIdentifier1 : 0198462083867 ExternallyAssignedProductIdentifier2 : 198462083867 ItemName : Trolley Assembly 4 Wheel Beam Roller Curtain Sliding Door Pulling Lifting Hoists Accessories ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 9 centimeters ItemPackageDimensions_Width : 8 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : beam-trolleys LoadCapacity : 2 tons Manufacturer : Jauarta Material : Cast Iron ModelName : Jauarta4n2x3d61ag ModelNumber : Jauarta4n2x3d61ag NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Jauarta4n2x3d61ag ProductDescription : Specification: Item Type: Trolley Assembly Material: Alloy steel Color: Silver Application: Used for household movable door, wardrobe, large iron door, curtain, automatic equipment pulley assembly, factory track pulley