High quality Steel barn door hardware kit. Heavy duty roller bearing. High strength industrial grade track. Water Resistant and Rust Proof for long lasting use. Upgraded accessories make the whole system more stable. Detailed instructions are easy to understand. Perfect for an exposed sliding door in the bedroom, study room, living room or kitchen. Heavy duty construction with black powder coated surface ensures water resistant and rust proof for long lasting use; Sliding smoothly and quietly. Max Door weight capacity is 220 lbs. 1.18″ to 1.96″ (30mm-50mm). Unique Sp r i n g Door Stopper. Spring damping door stopper makes no sounds. When opening and closing doors. Minimize the impact to track. Keep the Door more stable. Revent door bottom from swinging back. E rail screws and wall surface. Ole system runs more stable. Rollers 4 PC (2 Pair); Anti-jump Disk 4PC; Floor Guide2PC. Door Stop:4 PCS (2 Pair)’; Wall Hangers; Wood plug, Roller Screws and Install manual. Tip: if you order 7FT Track, you will gey 27FT Tracks.