The PRO SPEED PLUS version of the original revolutionary BIRTEE PRO golf tees, designed to be fast and easy to use for golfers of all calibres and ages.This new design has 6 larger legs as opposed to 12 smaller legs,and made with an advanced “higher flex” polymer that provides enhanced Flexibility and Durability. Also the upper part of the legs come together sooner in a reinforced solid section attaching it to the ball support, for greater durability. They also feature a better quality, more flexible and more durable plastic, which has lowered the brittleness temperature, for better results for extremely cold temperatures for winter golf. The kit comes complete with 8 tees varying in height from 1/4" up to 2" with 1/4" incremental steps. It provides every golfer with a constant height for any size club (Drivers, Woods, Hybrids & Irons) for every tee shot. They are also available in Individual Sizes Packs. The BIRTEE PRO works on normal golf surfaces, as well as on any hard surface such as gym / garage floors, indoor GOLF SIMULATORS and even frozen ground. It was designed to be reusable, durable, recyclable and more convenient than conventional tees. It eliminates the need for pushing tees into the ground, but most importantly it eliminates the guess work for achieving a constant tee height. The 8 constant heights will give every golfer more confidence and consistency.