·MATERIAL : Barn door sliding kit are made from high-quality carbon steel,sturdy and durable,with a maximum load capacity of 150kg.Surface:Matte black. ·LOW NOISE AND SMOOTH : Material of roller bearing:stainless steel;Barn door hardware rollers material:PREMIUM NYLON,it will reduce friction and sliding smoothly. ·WIDE APPLICABILITY : Sliding barn door kit is suitable for many life scenes such as bedroom,living room,study room,etc.There are also many people who choose to use it outdoors.If you want to do this,please pay attention to maintenance.(the barn door panel is not included) ·DETAILED SIZE : The sliding door kit for double door.Max weight capacity: 150 kg;Roller diameter: 69.9 mm(the height from the door to the ceiling needs more than this diameter);Sliding rail thickness: 5.8 mm,Sliding rail width: 39.9 mm.Applicable door panel thickness: 35-45 mm;The maximum width of the applicable door panel does not exceed one quarter of the length of the track. Package contains: Splicing Track 4 * Rollers Accessories Required for Installation 1 * Installation Manual Note: ·The barn door panel is not included. ·Make sure your wall can bear enough weight. ·In order to facilitate sliding,there is a gap between the door panel and the wall, so it may not be able to block sound and light.If necessary, you can add the sealing strip. ·The size is measured manually, there may be some errors, please keep 1cm space for reference. Advantage: √Easy installation:The package contains all the necessary parts for installation.With complete manual,the sliding door rails can be easily installed.(the barn door panel is not included) √Space saving:Instead of the usual door opening method,save more space.The track also can be cut to shorter length to suit. √No lower track:Only need to install a floor guide,safe and durable, easy to clean. √Fashionable and simple style:Applicable to many kinds of scenes, beautiful and generous.