All Terrain Self Propelled Wheelchair This Type of wheelchair can handle any outdoor terrain, such as cobbles, mud, and gravel. It can also be used on snow or grass. This type of wheelchair can also be used indoors. This chair is self-propelled, allowing the user to control their own speed. https://www.mymobilityscooters.uk/products/mobiclinic-torre-lightweight-manual-self-propelled-wheelchair