Note from Hitting World: this training aid promotes a level or slightly downward swing path. We don't believe that is the optimal approach. That said, the foam bars can be positioned in beneficial ways. You can even try using the angled bar as a way to promote a slightly upward swing path.
The Perfec-Tee is designed to help batters of all
levels create a proper swing plane. This patent-pending teaching aid is
easy to install on virtually any existing batting tee.
Perfect Practice: The Perfec-tee was invented to do just
that. The most difficult thing about doing tee work alone is that you
can't always tell if you are swinging properly. The Perfec-Tee uses two
strategically positioned guides to assist a batter in consistently
producing a proper swing path.
Consistent Contact: The key to consistently hitting the ball is
keeping the bat barrel in the hitting zone as long as possible. The
Perfec-Tee promotes a proper bat path, and it assists the batter in
keeping the bat barrel in the hitting zone as long as possible.
Bat Speed: The key to bat speed is to be able to pull your hands
through the hitting zone as quickly as possible. The Perfec-Tee
promotes bat speed by forcing the batter to take the bat knob straight
to the ball, eliminating extra motion and allowing the batter to build
more bat speed.