This size ball, the smallest aside from mini-balls not used for real practices or games, weighs 10 oz. and can be used for players under 8. The No. 3 ball is only 24 inches in circumference and thus doesn't come up as high on the leg as an adult model. You don't need to provide a match-quality ball for your young player, write the authors of "The Complete Idiot's Guide to Coaching Youth Soccer."