Support door weight 90kg, fit door panel thickness 4cm to 4.5cm. Kit comes with all the necessary hardware for hanging the door. (door not included) The large wheel suspension wheel is made of carbon steel, which is corrosion-resistant. It is equipped with three-layer plastic-sprayed silent pulleys and 6002z double-sided steel bearings, providing silent and steady rolling. The screws adopt 8.8-grade high-strength self-tapping quenching screws. Adjustable roller stopper can be fixed at any position of the track, while anti-jump disks fill the space between the top of the door & track bottom to prevent rollers from jumping off the track and ensure added safety; Strong floor guide to stabilize door movement without swaying back and forth. Note: 1. This product only includes the barn door hardware kit, the door is not included. 2. Only use on a solid wall, such as a brick/concrete wall. It is required to add concrete/wood if installed on a hollow brick wall and other non-load-bearing wall. 3. If there is a skirting line/door cover on the wall, it is recommended to add woodworking decorative boards and extension accessories. 4. In order to avoid measurement errors, please ensure to leave an additional 1cm of space in your budget calculations. 5. The default size is the door panel thickness of 4-4.5cm, and the flat wall has no protrusions. If the thickness of the door panel is non-standard or there are protrusions on the wall, please make sure the measurements before purchasing. 6. Due to different lighting and screen settings, the item's color may be slightly different from the picture. 7. Please allow slight differences in size due to manual measurement. Material: Carbon steel, POM Colour: Black Package size: 80cm x 16cm x 8cm (31.49in x 6.29in x 3.14in) Weight: 6.75kg (14.88lbs) What's in the box? 2 x Carbon Steel Tracks (total length 1.5m) 2 x Large Roller Hanger 5 x Carbon Steel Pipe Clip 4 x M10 Door Panel Screw Set 5 x M8 Wall Screw Set 2 x Anti-jump Disk 2 x Stopper 2 x Floor Guide