Heading Trainer Soccer Ball For Ages 11 and Up - Ultra lightweight Size 5 Soccer Ball that only weighs as much as a Volleyball (10 oz) Train perfect heading technique without the sub concussive impact from a regulation size ball Our ball is about half the weight of a typical size 5 soccer ball and designed to be purposely under inflated while maintaining its bounce and responsiveness - resulting in impact that is less than 50% of a regular ball A Ball for a Ball: For every heading trainer ball sold, we donate a high quality soccer ball to disadvantaged youth in the USA Download the Triangle Training Method App for technique training and games to use with the Heading Trainer - http://www.theheadingtrainer.com/video-guide.html