I wanted a tee that allows me to reliably tee the bottom of the ball 2.5 off the ground. This tee allows me to do that by sinking the tee into the ground so that half the green is left showing. The 1.5 is helpful for soft and spongy teeing ground conditions. For rock hard conditions, I have a different tee which only requires 3/4 of ground depth to achieve 2 1/2 inches, tees also made by same company but with blue stripes.
Rating: [5 of 5 Stars!]