Features: Precisely adjust the height of the golf ball seat to ensure swing consistency. Adjustable golf ball seat height, allowing you to easily find the perfectly swing height. Increase the impact of seat height on swing postures and power, making every swing more precise and stable. Make from Plastic materials, providing great resistant to wear and tear for extended use. Great for beginners and professionals seeking precisions in their game. Helping you make your swing more professional and improve your golf skills. Specifications: Materials: Plastic Size: about 8.1x4.3x1.70cm/3.19x1.69x0.67inch Package Includes: 1pc Adjustable Golf Tees Height Tool note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.