SUPERIOR QUALITY: ;Made of black heavy-duty steel, it has the benefits of sturdy, durable, wear-resistant and corrosion-resiatant. The roller is a combination of high-quality bearings and nylon wheels, matched with 6mm thick track to improve the bearing capacity of the product. And it has undergone 120,000 tests to ensure quiet and smooth sliding.DESIGN CONCEPT: ;Different from the traditional hardware kit on the market, the folding door kit can greatly save you space. And the scope of application is wide, can be used in a variety of living occasions, such as living room, dining room, study, etc.PRODUCT DETAILS:; Packing: 1x 2.3FT track, 2x roller, 2x roller rotating bracket, 1x roller fixator, 3x spacer, 3x hinge, 1x floor guide, 1x Sealing Strip. Fit Door Thickness: 1-3/8"~1-3/4"(35mm~45mm). [Friendly reminder: DOOR NOT INCLUDED]EASY TO INSTALL: ;The total width of the door panel plus 4" is the length of the track. We provide detailed Bi-Fold sliding barn door kit instructions with pictures and text, which can be intuitively installed by yourselves, saving the time and cost of finding an installation team for you.