This pack includes 40 tees of 83mm and 10 tees of 44mm. These tees allow you to find your tee height with ease, reduce friction, and are reusable. They are stronger than wooden tees. The CHAMP MyHite FLYtees feature a 6-prong head and reinforcing ribs, with dark colored lines on the shaft to customize golf ball height. Eliminate the struggle of finding the correct height for your driver or iron shots.