Ergonomic Thicker Seat and Backrest Embrace comfort with an ergonomic high-density soft sponge cushion and breathable mesh backrest. Stationary bikes for adult seniors aim to help knee and lower back arthritis patients work their mobility and recover from replacement surgery Tailored Comfort Instruction and tools are included, and installation is a breeze. Recumbent exercise bikes embrace comfort with an ergonomic high-density soft sponge cushion and breathable mesh backrest. Aim to help knee and lower back arthritis patients work their mobility and recover from replacement surgery Adjustable Resistance Levels: Customize your workout with 8 levels of magnetic resistance, a recumbent exercise bike suitable for users of all fitness levels. Easily adjust the intensity to meet your training goals, ideal for gentle physical therapy and relaxing cardio exercise by recumbent exercise bike Advanced LCD Monitor Display: The recumbent exercise bike tracks your progress in real time with