[PREMIUM HARDWARE MATERIAL] - WINSOON sliding barn door hardware is made of high quality steel in high temperature fine black powder coated surface ensures anti-corrosion and years of beauty and longevity. High strength industrial grade tracks and pulleys can easily hold 230 lbs. loads. [SLIDE SMOOTHLY AND QUIETLY] - High density thermoplastic wheels provide a smooth, sliding motion and quiet operation, give you ultra-quiet experience. The perfect addition to offices and homes, this barn-styled door is ideal for closets, interior doors and room dividers, sliding doors provide an innovative solution for closed off rooms or tight spaces. [ALL MOUNTING HARDWARE INCLUDED] - Kit comes with all necessary hardware for hanging the door, including 2 piece 3.35FT and 1 piece 3.28FT sliding tracks,2-junction plate, 4-door stoppers, 4-wall hangers with rollers, 2-floor guide, 4-anti-jump pads, 8 M10 bolts and spacers, 8 M10 bolts for 1-3/8" to 1 3/4" doors (other door thickness, just tell us via email, we could customize), instructions. TRACK AND HARDWARE ONLY, DOOR NOT INCLUDED. [EASY TO INSTALL] - This hardware requires at max 2 people. Includes detailed, easy to follow instructions. Professional customer service team help you solve all installation problems in time, accept custom-made. THE CLEARANCE needed from the top of your door to the ceiling is at least 8 in. For double doors with a thickness of 1-3/8" - 1-3/4" , Ideal for openings up to 60 in. W [GUARANTEED SERVICE] - WINSOON sliding barn door hardware kit has passed 120,000 times opening and closing tests, comes with a 5 year warranty. Any problem in using it, our professional Customer Service Team will answer questions for you.