All Terrain Wheelchair Electric All-terrain wheelchairs let people enjoy the outdoors, permitting access to trails and muddy fields or even the beach. They can be self-propelled or controlled by an attendant. These chairs are perfect for MS patients with upper body strength who wish to exercise and enjoy the outdoors. https://www.mymobilityscooters.uk/products/drive-devilbiss-titan-axs-powerchair-compact-electric-chair