【HEAVY DUTY: 260lb Max】Upgraded 53mm width heavy duty drawer slides adopt 2 mm thick Q235 steel plate ( tensile strength>400MPa). It passes 150,000 full-load cycle tests without damage, perfect for Cabinet, Kitchen, Tool Box, RV and Trash Can heavy storage. 【Full Extension & Detachable Design】 3-section full extension rail runner allows complete drawer pull-out for full item access. Equipped with a rear plastic buckle, the innermost track can be detached easily for quick installation, cleaning and daily maintenance. 【Slide Smoother & Quieter】 These soft closing drawer slides adopt double solid steel ball bearings and durable rubber shock pads. It ensures ultra-smooth opening and quiet buffer closing, effectively reducing slamming noise and improving using comfort. 【Mounting Tips & Wide Compatibility】 Reserve 3/4-inch bilateral mounting space , and Ensure the size of selected drawer tracks ≤ the drawer depth. Versatile for cabinets, industrial drawers, RVs, trucks, shelves and vending machines. 【After-Sales Guarantee】 Includes 1 pair of heavy duty drawer slides and mounting screws(Note: longer slides come with relatively lower load capacity). We offer 36-month warranty and 7*24h professional technical support.