Pride Ranger Off Road Mobility Scooter Captains Seat
Heavy Duty Large Size Motorized Wheel Chair Sofa Seat All Terrain Outdoor Offroad Electric Power Wheelchair - China off Road Wheelchair, Offroad Wheel Chair | Made-in-China.com
BodyBilt Big and Tall Office Chair J3504 | Heavy Duty Office Chair
I imagine these casters are typically used for off-road office chair racing | Salvage, Casters, Office chair