Specifications Color: Yellow, Black Material: Aluminium Alloy, PVC Wheels Material: Industrial Plastic Process: Paint Spraying, Cutting Assembly Required: No Number of Wheels: 4 Load Capacity: ＜159kg/350.53 lbs Product Size: 52*80*140cm/20.47*31.5*55.12in Folding Size: 102.5*52*21cm/40.35*20.47*8.27in Package Size: 107*52.5*24cm/42.13*20.67*9.45in Gross Weight:14.2kg/31.3 lbs Net Weight: 13kg/28.66 lbs Package Included 1* Folding Stair Chair Notes 1.Please make sure that the passengers fasten two safety belts before using this product. 2.The operator who pushes the stair chair needs to have some strength to use it, otherwise, it will affect the safe operation efficiency and use experience. 3.Please allow the slight color differenc.