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.