The G Tee Batting Tee, Model GT1830, is an AWARD WINNING, Professional, Portable, Patented Batting Tee for BASEBALL and SOFTBALL. The G Tee won the Best of Show Award at the American Baseball Coaches Association Convention and they called it the BMW of batting tees. The G Tee was engineered to professional standards and is constructed with only the finest components. G Tee’s telescoping upright is adjustable from 18?-30? (46cm-76cm). This range of motion allows the hitter to effortlessly set the desired hitting height. Seals and bushings at the core of the telescoping upright, maintain the height of the ball, hit after hit. The G Tee base, 12? x 12? (30cm x 30cm), is made of high density polyethylene. The weight post with the optional 10 lb. weight plate (GT1901) gives the G Tee incredible stability. This steadiness, along with the uniquely designed flexible rubber G Tee cup, allows the hitter to more accurately hear and feel the ball on impact. The G Tee is completely portable, assembly or disassembly takes a matter of seconds. The G Tee comes with a 2 Year Warranty on all parts and labor. The G Tee is not disposable, every part is replaceable. Made in USA.