Suitable for: Winter tees are great tool for frosty days and winter, easy to use on hard ground or winter tees, does not fly away during tees shot. Easy to Use: When you want to practice in winter or on a hard indoor floor, it is difficult to put the tees in the ground. At this timing, you need a tees to help you solve the problem. Wide Application: Best for beginners or enthusiasts, tees is a 4 heights can be switched at will help you to exercise more skills. Materials: The tees are good-quality rubber with a simple but classical shape that can be reused. 4 Different Heights: Winter mat tees have 12mm, 17mm, 22mm, and 37mm 4 sizes; And different heights to meet your different daily needs.