Product Name: O-ring; Material: nitrile rubber (NBR)Color: Black; Inner diameter: 39 mmOuter diameter: 45 mm; Thickness: 3 mmWeight: 14 g/pcsThe O-ring is made of nitrile rubber, oil resistant, abrasion resistant and waterproof.Use in car components, machine components, and sanitary equipment, household electrical appliances, electrical instruments, etc.Package Included: 20 x 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.
