BACK DOOR Sports BT100 Bag Toss Constructed of a special mixture of Poly Propylene designed to provide optimal impact absorption for a true bounce on every toss Designed to resist damage and drying from the sun and other natural elements Bags are filled with non-toxic pellets to give the bags a uniform weight, and the seams are double stitched for extra strength and durability. Sturdy removable legs are textured on the feet to reduce slippage and movement of the game board during play 1-year warranty