Descriptions: The most critical part of the is the The weight, hardness, elasticity and flatness of the will affect the ball's movement. According to different , each person has a different physiological need for the weight of the . Features: This weight ring is made of qualified steel and rubber, solid, firm and to use, ensures a long time service. The weight ring is made to maintain a good sense of comfort in use for everyone by adding the weighted ring. Great accessory for players. Slides over grip and down shaft, warm up swing weight, improve your ing skills. Slips easily onto , it can help build muscles at the same time. Specifications: Condition: Brand New and High Quality Material: Steel + Rubber Color: Black + Quantity: 3Pcs Diameter: Approx. 6.5cm / 2.5inch Weight: Approx. 443g Package Included: 1 x Driver Weight Ring