Features: 1.Material thickness:1.0mm, 1.2mm 2. Colors: white, black, brown, silver 3. Max. load: 25kg 4. Sizes: 10" - 24" (250 - 600mm), gauge for every 50mm 5. Optional installation of screws 6. Outer packing: 25 sets/carton. Carton dimensions(depending on slides' length)