IncStores - Jumbo Soft Interlocking Foam Tiles - Perfect for martial arts, MMA, lightweight home gyms, p90x, gymnastics, cardio, and exercise Available in 2 popular reversible colors Two detachable edge pieces allows any tile to be a corner, border or center Backed by a 1 year limited warranty Made from non-recycled, non-toxic, lightweight, and durable high density closed cell EVA foam Foam tiles may fluctuate by color and thickness