Playground Ball Set, Nylon, Assorted Colors, 6-setTwo ply, nylon wound construction so balls stand up to the toughest in class and after school play. Durable balls will retain their grip and bounce for years. Bright, colorful balls stand out and are easy to find. Diameter: 8. 5"; Material(s): Two Ply Nylon Wound; Color(s): Blue; Green; Orange; Purple; Red; Yellow. Package Includes: (1) Set: (1) 8. 5" Blue Ball; (1) 8. 5" Green Ball; (1) 8. 5" Orange Ball; (1) 8. 5" Purple Ball; (1) 8. 5" Red Ball;