Would these treads be legal in competition?

All Terrain Reinforced 2 Inch Wide Tread - by the foot
http://www.superdroidrobots.com/shop/item.aspx/all-terrain-reinforced-2-inch-wide-tread-by-the-foot/1626/
All Terrain Reinforced 2 Inch Wide Tread - by the foot - SuperDroid Robots - This item is sold by the foot. Enter the total number of feet you'd like into the quantity field. If you'd like it cut into multiple sections or if you would like it assembled wi