P.G. Sof\/s" are roto-molded from foam-vinyl and combine the best features of traditional rubber playground balls and coated foam balls. Sof\/s" are supple, squeezable, _x001c_sting-free_x001d_ and bounce like a rubber ball! Sof\/s" don\/t have internal bladders, so their designated diameter can be varied by an inch or two to find the desired softness and bounce. Set of six colors (1 each of red, yellow, blue, green, orange and purple).