Features: Marine grade stainless steel constructions, Excellent strength and durability even in the harshest marine environment. Feature a twist designs for easy operate, this shackle offer a secure connection for your Riggings needs. Suitable for sailors, marine enthusiasts, and professional in the boatings industry who require hardware for their vessels. Suitable for use on yachts, sailboats, and ship, ensuring a link for sail, anchors, and other marine equipment. Allows for attachments from the side rather than the front. Perfectly for connecting chain and rope. Specifications: Materials: Stainless steel Size: 4mm (0.16inch)/5mm (0.20inch)/6mm (0.24inch)/8mm (0.31inch)/10mm (0.39inch)/12mm (0.47inch) Package Includes: 1pc Stainless Steel Twist Shackle note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.