These 8 replacement adjustable golf tees will keep you driving. Designed to mimic Fiberbuilt driving range tees, these durable and flexible tees allow you to customize the height to suit your swing and preferences. Fit into many tee bases and the barb assures that the tee doesn't fly out shot after shot. Made from high-quality nylon polymer materials, they are built to withstand repeated use and reliability. Easily adjust the height to find your perfect tee position. Improved with dimples that grip the rubber base to prevent the tee from slipping. The rubber base to insert the tee into is not included as this is a product meant as a replacement tee.