All Terrain Self Propelled Wheelchair It Is capable of handling nearly any outdoor terrain, including cobbles, mud, gravel and snow. It can also be used on grass and. This kind of wheelchair can also be used indoors. This chair is self-propelled which allows the user to choose their own speed. https://www.mymobilityscooters.uk/products/20-inch-wide-seat-lightweight-aluminium-folding-mobility-scooter