The unique 5-prong design allows for reduced contact area between the ball and tee resulting in longer, straighter drives. The tees are made of a sturdy bio-composite material which provides increased stability in ball placement on the tee and tee into ground. Zero Friction cyan blue 2-3/4 inch tee. Features: Reduces Friction Brand: Zero Friction Color: Cyan Blue Manufacturer Part Number: ZV10000 Assembled Product Weight: 0.15 lb Manufacturer: Zero Friction Assembled Product Dimensions (L x W x H): 6.00 x 4.00 x 1.25 Inches