Composite leather. High school, collegiate or professional training football. 8" x 6" x 6" inflated. Ages 14 and up. Reinforces throwing fundamentals without need for a partner. Throw a spiral or duck against the wall and get the same throw back in return. Increases arm strength and accuracy for quarterbacks. Increases reaction time and ball handling proficiency or receivers via increased repetitions. Training drills for each position included on the box and web. Size 9. Patent # 6,264,574.