ApplicationIdeal for cabinet, desk pedestals and storage drawers. Easy to install: 1 pair of low noise drawer slides, including detailed instructions that make installation easier. Full extension: side ball bearing slides, full opening allows access to the entire drawer. High strength and rust resistance : Heavy duty drawer slides are made of high quality cold rolled steel with zinc plating, ensuring quality and longevity. Suitable for intensive use. Smooth and silent: double row of steel ball bearings that guarantee a smooth and silent performance. Featuring a soft-close feature to close any drawer smoothly and silently, creating a quiet living environment for your family. Size:310(12 ")(L)*17mm(W) Features: 1. High quality ball bearing with excellent workmanship for silent and smooth sliding. 2. 2-ply structure. 3. Telescopic slides from 20.3 cm to 40.6 cm, compatible with most drawers. 4. The width of 17mm (approx. 1.7cm) of the standard industrial width blades guarantees an actual rated capacity of 100 lbs. 5. Side mount and 17mm groove can be selected. 6.Ideal for cabinets, desk pedestals and storage drawers. Features: Material: cold rolled steel. Width: 17 mm. Length: 310 mm Weight: 232 g. Contents: 2 ball bearing drawer slides.