76 In Door Hardware Black T-double Folding Sliding Door Guide Rail Hardware Set. “T” Bi-Folding Sliding Barn Door Hardware Kit 76 (193CM) 4 Doors. Track size: 76 inches (193CM). Scope of application: door thickness 0.5-50MM. Excellent quality? Made of high quality carbon steel, it has the advantages of strong, durable, wear-resistant and corrosion-resistant. The rollers use a combination of high quality bearings and nylon wheels with 6mm thick tracks to improve the carrying capacity of the product. And it has been tested 120,000 times to ensure quiet and smooth sliding. [Design Concept] Unlike traditional hardware kits in the market, the folding door kit can greatly save your space. And it is widely applicable and can be used in a variety of living occasions, such as living room, dining room, study room, etc. Product Details? Package: 4x FT Track, 4x Roller, 4x Roller Swivel Bracket, 2x Roller Retainer, 5x Gasket, 6x Hinge, 2x Floor Guide, 1x Seal. Suitable Door Thickness: 1-3/81-3/4 (35mm45mm). [Friendly Reminder: Door not included]. [EASY TO INSTALL] The total width of the door panel plus 4 inches is the length of the track. We provide detailed bifold sliding barn door kit instructions with pictures and text so you can install it visually, saving you time and the cost of finding an installation team for you. Round the clock support? We have a professional customer service team online 24 hours a day to help you. If there is any problem with our products, please let us know and we will try our best to solve your problem. An unpaid case will be filled after 4 days.