Golf Swing Corrector: This Golf Swing Trainer Ball helps you maintain a straight elbow while playing golf, enhancing your performance and technique Swing Alignment Practice Tool: Easy to wear and adjustable to fit most people, this Golf Training Aid is designed to improve your swing skills by providing better control and flexibility Correct Swing Posture: Our Golf Ball in improving stability and confidence during swing, increasing the accuracy of direction and distance Wide Application: Our Inflatable Ball is suitable for a variety of users including golf beginners and coaches, making it a versatile tool for all levels of expertise Enhance Your Game: With its easy to use design and effective results, this Swing Trainer Aid is an essential accessory for anyone looking to improve their golf game Specification: Material: PVC Flocking Size Chart: Golf Ball Diameter: 15cm/5.91inch Lanyard Maximum length: 59cm/23.23inch Package Includes: 1 Golf Swing Trainer Ball withLanyard Note: Please allow slightly errors 1-2cm differences due to manual measurement.