Bring structure and consistency to four-square games with the Champion Sports Rhino Skin® 4-Square Playground Ball Set, designed for repeated use in gym classes, recess, and group activities. Each 8.5" ball features a durable Rhino Skin® coated cover that resists tearing while maintaining a soft, controlled feel during play. The textured surface helps players grip and direct the ball more accurately, supporting better control during fast-paced games. An inner bladder helps maintain air and shape over time, reducing interruptions during play. This set includes four two-tone balls—yellow/purple, red/green, blue/orange, and multi-color—making it easy to organize courts and teams, and all balls ship deflated for convenient storage and transport.