Three wheeled scooters, with their front central wheel, cannot use a pair of channel ramps. This aluminium ramp is made wider to take the whole vehicle. It is also easier for helpers of wheelchair users to walk on the ramp behind the chair. The top end has an angled lip with ribbed rubber underneath and holes for permanent fixing if required. The side parapets help prevent the chair or vehicle coming off the ramps. The whole of the flat surface is coated in a gritted safety tread. Full specifications in table below.