2 3/4" Zero Friction Performance Tees in brilliant North Dakota State Bison colors printed with NCAA trademark. Made from eco-friendly 100% biocomposit materials. Patented 3-prong top reduces the contact area between tee and ball by 66% leading to longer, straighter drives. Rated the longest, most accurate tee in independent laboratory tests. Packaged in three hangable clamshells, 50 tees in each (total 150 tees).