JOON Kids Fun Play Balls with Cleantec Technology & Durable Storage Bag, 6 Bright Colors, 100 Count The only play balls on amazon made with cleantec Made with cleantec technology to inhibit the growth of stain and odor causing bacteria, mold, and mildew Great size: each ball measures 2.5 inches in diameter, the best size for a child's hand Vibrant colors: comes with 100 balls in each bag and includes 6 bright and lovely colors: red, green, blue, orange, yellow, and purple Great for: filling ball pits, playhouses, kiddie pools, playpens, bounce houses, and so much more