Alise 10-Inch Steel Ball Bearing Drawer Slides,Buffered and Auto Shutdown,Quiet and Smooth,1-4/5 Inch Wide,Black Pair steel construction Ball Bearing Telescopic Buffering Drawer Slides,ensuring quality and longevity Featuring soft-close functionality to close any drawer softly and silently Size(Folded): 250 x 45 x 13mm/ 10" x 1.8" x 0.5"(L*W*T); Size(Unfolded Length): 480 x 45 x 13mm/ 19.2" x 1.8" x 0.5"(L*W*T);Maximum 100-Pound bearing Application: cabinets, desk pedestals and general storage drawers Detailed instructions and mounting hardware included for easy installation