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https://blogfreely.net/lifthea....lth7/how-self-propel
All Terrain Self Propelled Wheelchair These wheelchairs were designed with the idea of adventure in mind. They feature comfortable hand rims and treaded pneumatic tires that can withstand rough terrain. They also offer a range of accessories that can be used to further improve your comfort and performance. Centre Parcs, Zoos and other attractions offer wheelchairs