Instruction:Easy to install and repair, almost no additional drilling, measuring and other adjustments are required when replacing accessories, and the installation and replacement of damaged parts are easy and quick. Advantage: Bi-fold door hardware is made of quality carbon steel material, which is strong and wear-resistant, not easy to become brittle and cracked, and can be used for a long time 4/8pcs Sliding Wardrobe Door Roller Kit, 2/4 Sets Brushed * Plated, Including 8pcs Sliding Door Rollers, 8pcs Sliding Door Hinges... SpecificationColor: WhiteMaterial: Carbon SteelStyle: Bi-Fold Door Top Guide Wheel RollerLength: 53 mm / 2.09 inchWidth: 22 mm / 0.87 inchPackage List: 2 Pcs x Bi-Fold Door Top Guide Wheel RollerAdvantage:Bi-fold door hardware is made of quality carbon steel material, which is strong and wear-resistant, not easy to become brittle and cracked, and can be used for a long time. Suitable for repairing folding doors, sliding doors, folding closet doors, bedroom closet doors, garage doors, pantry doors, barn doors, etc CCJH 30 Bi-Folding Interior Hanging Sliding Barn Door Hardware Kit for 2 Doors, Black Track J Shape Roller Sliding Door Wheels Replacement Kit Ana 8pcs Bi-fold Door Top Guide Wheel Bi-Fold Door Hardware Repair Kit Bifold Closet Door Hardware NOTE: Please refer to the line drawing for size and compare with your needs before purchasing Bulbs not included: Works with standard E26 light bulbs, up to 50W max. Easy bulb replacement. H Type Track Compatible Color: White Material: Carbon Steel Style: Bi-Fold Door Top Guide Wheel Roller Length: 53 mm / 2.09 inch Width: 22 mm / 0.87 inch Package List: 2 Pcs x Bi-Fold Door Top Guide Wheel Roller