CCJH 20ft Heavy Duty Sturdy Sliding Barn Door Hardware Kit -Smoothly and Quietly -Fit 120 inch Door Panel (Big Spoke Wheel Hanger J Style)Durability and Weight Capacity: Solid steel roller hanger and High strength industrial grade flat tracks hold MAX. 330LB 150KG door, anti corrosion and little wear and tear for years of repeated use. Quiet and Smooth Operation: Super silently nylon wheels and Spring damping door stoppers provide soft close sliding when opening and closing, move quietly and smoothly. Save Space: For space saving benefit, ccjh sliding barn door hardware kit is a great