ITEM NAME:4pcs Marine Stainless Steel R Retaining Clips Spring Cotter Pins 4x80mm Description: Marine grade 304 stainless steel Strong, durable and corrosion resistance Used for securing clevis pins, cotter pins and other pins Fully re-usable, easy to fit and remove Great for attaching fore-sail sheets or other sailing / boating applications requiring a high strength quick release. Size Chart: Overall length: 3.15" / 80mm Wire diameter: 0.16" / 4mm Large inner diameter: 1.18" / 30mm Small inner diameter: 0.51" / 13mm Package Includes: 4 Pieces R Clips Note: Please allow slightly difference due to manual measurement. Color maybe slightly different since different monitor. Thanks!.Used for securing clevis pins, cotter pins and other pins. Marine grade 304 stainless steel. Fully re-usable, easy to fit and remove.