Very high quality tees. Very durable and long lasting.
Very study and long lasting tee. SIX prong top makes it very easy to set the ball on top of the tee, much easier than some of the other performance tees with fewer prongs. Blue stripes around the tee allow you to tee up the ball the SAME height with ease. LONG lasting so I only need to carry one tee for the whole round. Stiff enough that they don't bend when setting it in the ground, as some others do.
Nothing at all
I think this might be the best of the solid high performance golf tees. Very long lasting, easy to set the ball to the same height using the blue stripes around the white tee. Easy to tee the ball up on top of the six prong crown. A pack of 30 tees should last most golfer the entire season or more. I don't know why any golfer would use a wooden tee when these are so much better.