One-piece 6.6ft long sliding track without joints. Pre-drilled 16 apart holes on track. Powder coated carbon steel construction, sturdy and durable. Smooth, silent and effortless operation. Roller stopper to prevent excessive sliding. Strong floor guide to stabilize door movement. Anti-jump to prevent rollers from jumping off the track. Spacing saving & easy installation. Comes with all necessary hardware for hanging the door. Turns your normal door into an innovative sliding door. Suitable for wood walls and concrete walls. Sliding Track Length: 6.6ft (200cm). Door Weight Capacity: 265lbs (120kg). For use with openings up to 40 each door. Door Thickness: from 1 3/8″ to 1 9/16″ (35-40mm). 1x 6.6ft (200cm) Sliding Track. 8x M10 x 55 Bolts for 35-40mm doors. 1x Set of Accessories. Door bottom needs to be grooved. Doors in the picture are NOT INCLUDED.

DIYHD 75 Bifold Door Sliding Track Hardware, 1 Piece Black Flat Track Top Mount Roller, Kit for 4 Doors(NO Door). Hardware only, not including door panel. Track length 75″, fit max door leaf width 16-3/8″;Thickness: 1-3/8″1-5/8″. Full set hardware including:75 track X1, StopX2, Track&wall connector X4, Floor guideX2, HingeX6, RollerX4. The height from top of the door to the top of the roller is 5 5/16. The gap between door and wall:Door closed:1″1 3/16″;Door opened:1/4″3/8″.