No use force to insert the plastic or rubber T-shaped tube into the practice mat, avoid the damage of tee to the lawn Simulator are made of quality plastic material, elastic, hard to and not easy to fade for indoor and outdoor driving practice, no more forcing plastic or rubber T-shirts into practice mats These winter suit can be applied in homes, yards, the golf training sites, outdoor and indoor activities, can also be applied in golf driving ranges, golf course. Fit for Beginners, golf lovers, the plastic are for your golf training and practice, helpful to your golf skills color:Blue Material:plastic size:35 x 45 x 19mm Package Contents: 16 x Golf tee Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.