Features: 1) 120mm German processed atmospheric pressure pump 2) Operating life: 10,000 time 3) Surface fabric: a) Advanced fire-retardant fabric b) Color fast c) Dirt resistant d) Wear resistant 4) Inside cushion is made using high density compressed sponge 5) Durable and flexible chassis 6) Five fiberglass universal wheels 7) PU covered steel handrails 8) Ergonomic design 9) 1 year guarantee