PACKAGE INCLUDE: 1 x Floor Guide Body, 2 x Long Bolt, 2 x Short Bolt, 2 x Plastic Anchor, 1 x Big Roller, 2 x Small Roller, 2x Flange Nut, 2 x Threaded Hex Jam Nut; Plus installation guide,wrench ADJUSTABLE ROLLER POSITION: Fully changeable distance fits wider range of barn door panel, up to 3 inch thickness (using single big wheel setup), also works well with thinner doors, DIY heavy barn doors, regardless of the size or type. [FLUSH TO FLOOR]: Our barn door roller guide has been specially designed to allow the bottom bracket sitting absolutely flat on the floor without scratching by the screws/bolts/nuts, more stable and beautiful. NO groove required for door, NO drilling on the floor, perfect for carpeted/ tiled floor. [QUICK EASY INSTALL ADJUSTMENT]: Wall mount sliding barn door floor guide with two screws, offers 8 different assemble options, detailed instruction/necessary tool, can be easily effortlessly fitted by anyone. Just adjust and tighten the screw in the bottom to fix