3.3ft-20ft Adjustable Sliding Ladder Hardware Kit - Round Tube Mobile Ladder Rail with Smooth Floor Roller Wheels - Heavy Duty Black Metal Rolling Ladder System for Library, Warehouse & Home Storage (10ft/300cm Track Kit) - Perfect for Bookshelf Access, Loft Storage & Workshop Organization

Metal carbon steel rail hardware kit are provided along with a completely smooth experience. Our sliding track is precisely designed and machined, with pre-drilled holes and are in seamless splice design, allow the pulleys to operate smoothly, to ensure a strong and seamless transition for ladders to travel from rail to rail. Extremely durable and quiet. The best choice for space saving, easily move to wherever you want.