Light weight and non-rusting, ideal for one person delivery operations. Perforated grip deck provides better traction in either direction. 3.5" safety curbs prevent accidents. Other sizes and non-perforated models are available. Ramp incline must not be over 20°; please make sure the height of your truck‘s bed is not higher than the ramp’s working height for proper incline. See Aluminium Walk Ramps Chart