POOF Max Mini-Sport Pack Safe, fun and loud way to play sports while hearing the signature BOOM that kids love 6-inch football, 4-inch basketball and 4-inch soccer ball are made of soft foam with fun colors and designs Kick it, toss it or slam it to get the Max BOOM POOF foam balls are the preferred choice by teachers for students during school sport activities Recommended for children 5-years of age and older