CCJH 10.5FT Sliding Barn Door Hardware Kit, Heavy Duty, Smoothly and Silently, Easy to Install, Fit 31.5" Width Double Door Panel, T-Shaped Style Black 5FT the surface is black painted

the surface is black painted to prevent corrosion

and both side have nylon rollers

4x door stoppers

to save costs

CCJH 10.5FT Sliding Barn Door Hardware Kit, Heavy Duty, Smoothly and Silently, Easy to Install, Fit 31.5" Width Double Door Panel, T-Shaped Style Black 5FT the surface is black paintedDurability 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