Feature: [STURDY STEEL BRACKET, UPGRADED ROUND CORNERS] - Fine black powder coated barn door bottom roller guide is tough, durable and rustproof, flush with the floor/ground, no screws protrude from the bottom, no groove required for door, no drilling on the floor. Perfectly shaped with round corners, countersunk holes and recessed screw heads, this wall guide keeps children and toes safe from harm. [EASILY MOUNTED FOR MANY APPLICATION] - Heavy duty roller door guide can be fixed/installed to the wall with screws, low profile sliding gate rollers look great both indoors and outdoors for areas such as living rooms or DIY projects such as carpet on concrete slab, works perfect for keeping the door/gate lined to the wall; comes with step by step instructions, very easy to assemble. [SMOOTH QUIET, GLIDE LIKE BUTTER] - Our bottom adjustable roller wheels contain built-in ball bearings, provide a smooth and effortless rolling, unlike others that have big wheels with only two small bearings, keep the door balanced and stable from both sides, requires only small space to install, offers more flexibility for perfect alignment of rollers with the door. [ADJUSTABLE ROLLER POSITION] Fully adjustable for different thickness barn doors, suitable door thickness can be up to 2-13/16 inch when using 2 rollers, up to 3-5/8 inch with inside roller removed. By adjusting the position of the rollers in the track to fit your door panel, fits most closet pocket doors.