Specifications: it can help golf beginners practice their waist strength and arm strength during swing. The main body is composed of 4 symmetrical propeller-shaped fan blades. V-shaped design increases wind resistance. After long-term use the wrist strength arm strength and waist strength will be fully exercised. This product has a better practice effect than the conventional swing exerciser. Hollow card slot body can smoothly guide the wind so that your swing trajectory will not appear snake-like deviation and the swing is still arc-shaped. The humanized design of the accessories is easy to install and disassemble. As long as you swing 20 to 25 times a day at home the force generated by the wind resistance allows you to naturally understand and master the swing skills. Item name: golf swing power fan material: rubber features: golf tool durable easy to use size: 78cm x 30cm x 30cm 30.71 X 11.81 X 11.81 Approx. Fan blade size: 39.5 X 14.5 X 2.5Cm 15.55 X 5.71 X 0.98 Rubber grip length: 28cm 11.02 Approx. Notes: due to the light and screen setting difference the item s color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package includes: 1 x golf swing power fan