"SET INCLUDES: 2 Door Slabs 2 steel rails 6.6FT each Hangers with wheels Door Stops Floor Guide Brackets Anti-Jump pins Installation Manual Screws for hardware Doors are No Pre-drilled! Thickness of the door slab is 40 mm or 1 9/16"". SOLID MDF CORE Solid MDF core made by laminated wood using Ciplex technology. CIPLEX by SARTO High-end film layer that is applied on top of the laminated wood Made in Italy. NO FORMALDEHYDE Environmentally friendly using only latest eco-friendly materials. Company requires use of only the safest materials. We care about our planet, the environment and you and your loved ones. Sarto Doors are Ideal for use in hospitals and childcare centers. SEALING GUM GERMAN COMPANY DEVENTER It has a special profile that allows to protect your home from dust, makes a cozy and quiet atmosphere around every day. On another side it allows you to save 35 % more heat and save up to 20% to the bill. SOUND ATTENUATION Door's 40mm thick solid MDF construction yields 30% noise reduction over standard doors. CONSTRUCTION Door will give several generations of normal usage with minimal care. Color: Gray."