Thank you for viewing! This is a set of 5 M5 size sealing washers sold individually. Perfect for maintenance and DIY projects. Product Details: Size: M5 (Inner diameter 5mm, Outer diameter approximately 10-12mm, Thickness approximately 1-1.5mm) Material: Iron (Unichrome plating), Packing: EPDM rubber Application: Ideal for sealing applications in automobiles, motorcycles, machinery maintenance, plumbing, etc. Condition: Unused, new Quantity: Set of 5 Shipping Method: Shipped in a postal envelope (standard mail) Click post may be used if purchasing multiple items or if the thickness increases. Please Note: Size is fixed at M5. Please confirm the required size before purchasing. We also have other sealing washers and related parts for sale. Recommended set for those who need them for DIY or maintenance.