Strengthen your muscles and warm them up with our weighted swing ring. 2.3 inch outer diameter, 1.2 inch inner diameter; Weight: about 5oz each ring. Helps Build and Train Golf Muscles; Increase your Flexibility, Strength, Distance and Control. Perfect gift choice for golf lovers. These golf accessories are great for golfers at all levels and are suitable for adults, teenagers, men & women and even kids. High Wear-resistant and excellent durability. color:As shown Material:Iron+PVC Package Contents: 8 x Golf Swing Weight Rings Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.