Made of 304 stainless steel for maximum corrosion resistance and durability. Type D is also referred to as a chain shackle, which is a narrow shackle shaped like a chain ring, usually with pins or threaded pins. D-type cockroaches are common, and most other types of cockroaches are variants of type-D cockroaches. Small loops can mainly withstand high loads. Side and shelf loading may distort or bend the D-shackle. Shackles are used to connect the sails to the sails. Product Name: Shackle Total height: 27mm Internal length: 15mm Shackle diameter: 4mm / 0.157inch Pin Dia: 4mm/0.157inch Weight: 16 grams Color: Silver Material: 304 stainless steel Package Contents: 2x Shackle 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. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.