ITEM NAME:10 pcs 26 mm x 19 mm x 3.5 mm Red Silicone O Ring Shank Seals P1C3 10 pcs 26 mm x 19 mm x 3.5 mm Red Silicone O Ring Shank Seals P1C3 Product Name: O Ring; Material: Silicone Outer diameter: 26 mm, inner diameter: 19 mm Thickness: 3.5 mm Weight: 9 g 100% brand new and high quality. Colour:Red Package Contents: 10 x O Ring Only 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..Thickness: 3.5 mm.