Description O-Ring O-Rings are commonly used in a variety of applications including shade sail, shade covers, tarps, saddlery and more. O-Rings are made from high quality marine grade stainless steel and are specifically designed for general purpose, marine and shade sail applications and for use with or without webbing. FEATURES: Stainless Steel Available in the following sizes – 4mm x 25mm 6mm x 40mm 6mm x 50mm 8mm x 50-55mm All purchases are made with the Buyer agreeing to our Terms of Purchase when they place an order: http://www.theshadecentre.com.au/en/company-policies/terms-of-purchase