Product Name: Rubber O RingMaterial: rubberColor: BlackInner diameter: 67 mmOuter diameter: 70 mmThickness: 2 mmWeight: 10 gPackage Contents: 10 x Rubber O RingsOnly the above package content, other products are not included.Note: Light shooting 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.
