Finger Rockets are 9" long by 1" diameter foam projectile that has 3 formed fins that shoot like a rubber band. They can go up to 100 feet, so start practicing. They add fun to every home, event, and office by grabbing people's attention. When you shoot someone they immediately are going to come after you, and the fun begins. It is best to have at least 1 per person, more is always better.