Foam soccer balls, set of 6, each a different color Soft foam with a durable coating for indoor use very popular in Physical Education Classes approximately a size 4 soccer ball (smaller than full size.) great for elementary age children. Delux Ultra Foam balls are the economical alternative to Nerf. Soft foam with durable coating. The 3/4 size ball is easy to kick & head. Sold in a set of 6.