P.G. Sof’s™ are roto-molded from foamed-vinyl and combine the best features of traditional rubber playground balls and coated foam balls. Sof’s™ are supple, squeezable, “sting-free,” 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. Now available in 4 sizes, and offered individually or in sets of 6 COLORZ.