The traditional design elements make both rustic and modern environment look simple and elegant, save space and be practical. This accessory for slidin. G doors for wooden doors can be used in any interior space, storage room, utility room, large bathroom, dressing room, office, blinds, areas of great mobility etc. The install instruction is included and exact. Perfect design and stable accessories. Made of high quality steel material. Suitable for door thickness from 1 1/5 to 2 inch. All necessary accessories for the assembly of the sliding door hardware are included. The door is not included. SUITABLE PARAMETERS? Adjustable Roller Screws, Fit door thickness 1 1/5″-2″(3cm-5cm). DURABLE & SAFE? High quality barn door hardware kit, Premium nylon roller wheel, Gcr15 roller bearing, High strength industrial grade track, Can easily hold 330lbs loads. ADVANTAGE?? Spring Door Stops, reduce noise and extend life? Pre- drilled rails, steel bearings? Wide Applicability? The rustic wooden sliding door fitting are very easily to decorate and suitable for bedroom, study room, dressing room, kitchen, closet, cabinet, farmland etc. Ply you within 24 hou. Bypass barn double door hardware kit main function is to save less space for your double doors. When your double doors are opened, the two door panels overlap, so only needed Space for a door panel. Hen the space next to your door opening is limited, then you need bypass barn double door hardware kit. Spring door stop, special design protect roller and reduce noise. Installed on the top of the door, prevent the door from popping out. Of the track during the movement. Track width is 4cm, thickness is 6mm; If door thickness is 4cm, the distance from the door to wall about 1cm. Ial is carbon steel, adjustable screws, suitable door thickness from 3cm-5cm. Using high-quality carbon steel, sturdy fixed double track, complete accessories, simple installation, will not damage the wall and the guide rail. 1 2 x Rollers 2 Wall Hanger Set (1 rail hole need 1 set) 3 2 x Door Stops 4 4 x Adjustable roller screws 5 2 x anti-jump blocks 6 1 x floor guide 7 Pre-Drilled Spliced rails Note: Only the sliding door kit for sale, door is not include. 1 4 x Rollers 2 Wall Hanger Set (1 rail hole need 1 set) 3 4 x Door Stops 4 8 x Adjustable roller screws 5 4 x anti-jump blocks 6 2 x floor guide 7 Pre-Drilled Spliced rails. Note: Only the sliding door kit for sale, door is not include. For Bypass 2 Doors. 1 Pre-Drilled Spliced rails 2 2 x Rollers 3 Wall Hanger Set (1 rail hole need 1 set) 4 2 x Door Stops 5 4 x Adjustable roller screws 6 2 x anti-jump blocks 7 1 x floor guide. 8 Bypass brackets (1 rail hole need 1 set) Note: Only the sliding door kit for sale, door is not include. For Bypass 4 Doors. 2 8 x Rollers. 3 Wall Hanger Set (1 rail hole need 1 set). 6 4 x anti-jump blocks. 7 4 x floor guide. Bypass brackets (1 rail hole need 1 set). How to choose track length? 1 Single Door Min Track Size= 2 × Single Door panel Width. Double Door Min Track Size= 4 × Single Door panel Width. 2 doors just slide on the opening space, and cannot be put away to the near wall, Track size= 2 × Single Door Width. 2 doors overlapped onto each other can be slid to the one side wall, Track Size= 3 × Single Door Width. 2 doors can be slid on the either sides wall, Track size= 4 × Single Door panel Width.