【150lb Load Capacity】— SHUHANG 51mm width heavy duty drawer slide is made of 1.5mm thick Cold Rolled Steel and ball bearing design allows it to bear up to 150lb load capacity.Sturdy enough to carry heavy loads. 【Slide smoother & quieter】Industrial-grade steel balls are strong and durable, keeping slide rail smooth and quiet when sliding. The rubber mat has strong wear resistance and reduces the impact when closing the drawer. 【Double Anti-Rust & 30 Years Service Life】— Zinc Plating finish for anti-rust which is twice the traditional ordinary slide. After professional institutions testing,the load open-close cycles times reached 100,000 times. 【Installation Precautions】— ①There is an installation video for reference. ②Ensure the size of selected slide ≤ the drawer depth; ③Reserve 1/2 inch of space for mounting on both sides; ④The two silde rails must be mounted in parallel,or it will be damaged.(Note: M4 screws NOT INCLUDED.) 【Pre-sales and After-sales Service】— If any question about product before purchase,please contact us at *Ask a question*,and we also provide you with satisfactory after-sales service.We will reply you as soon as possible. ASIN B08KZQSYNX Size 18 Inch Style Load:150 lb (Without lock) -W:51mm Finish Steel Item Weight 4.24 pounds Part Number 51mm -without Lock Manufacturer SHUHANG Weight Limit 150 Pounds Mounting Type Side Mount Number of Items 2 Item model number 51mm -without Lock Batteries Included No Batteries Required No Product Dimensions 17.72 x 1.97 x 0.5 inches Included Components 1 Pair of Drawer Slides, Mounting Instructions, Mounting Screws Maximum Weight Capacity 150 Pounds