Because this requires control and discipline on the part of the hitter, it helps focus his swing on those tough knee-high pitches. We also like the adjustability in multiple directions, and the quality of the materials, components and finish. Invented by Donny Buster in 2006 and put in production 2007, this is well designed, well manufactured, and unlike any other tee available anywhere. Definitely an important training aid, well worth owning. - Richard Todd, WebBall
The only tee for working on knee-high pitches.
This new training aid is the missing link to creating line drive power, plate coverage, gap-to-gap hit distribution, and proper weight shift. It trains for the knee-high pitch by holding the ball at the proper angle, suspended between two tee points.
Conventional tees have a flat top which encourages the batter to lift the ball upward to avoid tee contact. It's a natural reaction but it prevents proper weight shift and body tilt prior to the actual swing.
The Infini-Tee fixes all that.
It prevents the early lift before the front foot gets down. It allows proper weight load. shift and tilt and keeps you from "circling the ball'.

You can adjust both side tilt and front-to-back angles to work with your natural swing path in ways that an upright tee can never do. By suspending the ball from two points, it can be struck on a diagonal swing path with no tee interference or contact, and you'll get full power behind the stroke. (Click image for product close up.)
Caution:
Not a toy, made for kids to use under adult-supervised training. Tee holders allow adequate clearance of the swing path of experienced batters but for beginners with minimal hand-to-eye coordination or body control. Tee holders present a potential risk to your bat, bystanders, and/or your wrist if struck. We consider these OBVIOUS RISK but suggest that age/goals be considered.