Color: Red; Material: Steel block, Rubber; Diameter: 6 cm/ 2.3inch; Weight: 147 g/ 5.19 ounce Made of steel block and rubber material, not easy to deform, durable, and the rubber coating is soft, which can prevent the swing weight ring from scratching the golf club when swinging. The swing weight ring can give you a real swing feel when you empty rod practice. In addition, can be added more rings at one time to enhance the swing strength. And the size is small of the weight ring, easy to carry. Place the golf swing weight ring in the rod head. The golf club swing weight ring is an important practice tool for golf beginners to learn to play golf. Adjustable swing weight to enhance swing power, help players develop arm muscle strength, increase flexibility and control to improve swing skills. It is widely used in golf teaching for trainer and muscle building training. NOTE: Please kindly note that inner diameter and weight the golf club swing weight ring. Package Included2pcs* Golf Club Swing Weight Ring