Meet the Tread: a tire trainer available in 3 sizes that kicks your butt and makes you stronger. The Tread is made of foam and heavy-duty vinyl. It can be flipped, carried, and jumped on. Reinforced handles are available for farmer’s carries.
You can use the Tread indoors on rubber and turf. Each has a 24″ opening in the center. Available in 85, 135, and 175lb versions.