HIGH-QUALITY MATERIAL: -- A pair of guide rails can bear a load of up to 45 kg, and the side drawer slides are made of high-quality cold-rolled steel. The surface is treated with anti-rust paint to prevent corrosion and rust. Metal ball bearings in the raceways ensure high stability. SOFT-CLOSING DRAWER SLIDES: -- The drawer slides are equipped with hydraulic dampers and double-row steel ball bearings, and have a soft-closing function, which can close any drawer gently and quietly, creating a warm and quiet home environment for you. FULLY RETRACTABLE: -- 3-stage retractable design and side-mounted design. Fully retractable opening, can reach the entire drawer, make full use of the drawer space. The larger drawer opening can be easily stored in the drawer. ADJUSTMENT PARAMETERS: -- A set of two pieces, black, slide width: 44 mm, product material: stainless steel, maximum load capacity: 45 kg. MULTI APPLICATION: -- Smooth operation, drawers can be pulled out and removed comfortably, suitable for all types of drawers and are very suitable for installation in wall cabinets, kitchen cabinets, bathroom cabinets and office furniture. You avoid the inconvenience of noise when opening and closing drawers.