[HIGH-QUALITY MATERIAL] -- A pair of guide rails can support 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 CLOSE DRAWER SLIDES] -- The drawer slides are equipped with hydraulic shock absorbers and steel ball bearings double-row, and have a soft-close function, which can close any drawer gently and quietly, creating a warm and quiet home environment for you. [FULLY RETRACTABLE] -- Retractable design 3-stage and side-mount design. Fully retractable opening, can reach the whole drawer, make full use of the drawer space. The largest drawer opening can be easily stored in the drawer. [SETTING SETTINGS] -- A set of two pieces, black, slide width: 44mm, product material: stainless steel, maximum load capacity: 45 kg. [MULTI APPLICATION] -- Smooth operation, drawers can be pulled out and pulled out comfortably, suitable for all types of drawers and ideal for installation in wall cabinets , kitchen cabinets, bathrooms and office furniture. You avoid the annoyance of noise when opening and closing the drawers.