Not to put down another product that looks very similar, you can count on these tees standing the test of time. That area where the ball sits is rolled rubber. It gives with the bat. Therefore, the tee does not get knocked over with a poor swing. (within limits naturally) You can break the tee down and take it anywhere. I coached baseball for a looooong time, I've never run across better tees. My dd hits off of one every night. Ken, many of the tees that people use actually end up causing poor swings. Kids develop a fear of hitting them with their bats since they are hard plastic. No one will ever fear hitting of of this type of tee.Coach B25, what makes it so special? What does it do that other tees don't?