Designed specifically to be used with the JUGS Lite-Flite Machine Their sponge-like texture makes them safe for indoor hitting without a batting cage Same size as a regulation baseball but weighs just ounces...comes in Optic Game-Ball Yellow Bucket with handle holds 18 Lite-Flite baseballs. Players see a realistic pitch but do not get stung by the ball¿makes the JUGS Lite-Flite ideal for offensive and defensive drills