Champion Sports TRIPLEX Ground Zero Stealth FOOTBALL 3 Way Kicking Kickoff Onside Tee - Green Tee Improves effectiveness of kicking off The same onside kick notch as in the GROUND ZERO ONSIDE tee Ball receiving recess for conventional kickoffs is cut away and scalloped to reduce the surface area of contact The tip of the ball doesn't touch any tee structure Reshaped middle recess for squib kicks