Specifications Color: Black Base Shape: U-shaped Process: Spray Painting Material: Carbon Steel, Sponge Applicable Mattress Thickness: 10-15cm/3.94-5.91in Maximum Load Capacity: 100kg/220.46 lbs Height Adjustment Gears: 4 Total Product Size: 52*49*47.5-54.5cm/20.47*19.29*18.7-21.45in Package Size: 62*57*7cm/24.41*22.44*2.76in Gross Weight: 1.6kg/3.53 lbs Net Weight: 1.44kg/3.17 lbs Package Included 1* Bedside Handrail 1* English Installation Instruction Other Accessories for Installation.