This swing trainer is specifically designed to help you improve your swing and strength by providing a real golfing experience in both indoor and outdoor training session. allows you to work out core muscles and gain muscle memory. Let your become a habit, and allows you to enjoy a game. Features -Color: white -Material: ABS -Size: 75.00X10.00X8.00cm/29.48X3.93X3.14in - You can carry it anywhere and practice indoor day or night. - The product increases the degree of wind resistance, and the long-term use of wrist, arm and waist strength will be fully exercised - This Swing Trainer is specifically designed to help you improve your swing and strength by providing a real golfing experience in both indoor and outdoor training session. - allows you to work out core muscles and gain muscle memory. - Hollow groove main body, smooth wind guide, so that your swing trajectory will not appear snake deviation, still swing out is a circular arc. Package list: 1 x swing trainer