Features: brand new and high quality The shackles are made of 304 stainless steel, resistant to all weather conditions and especially to chlorides, acids and salt water. Simple to use, Make sure the pin is screwed into the shackle hole correctly, tighten it by hand, and then fix it with a wrench or other suitable tool. D-shaped shackle consists of D-ring and bolts. The shackle is well made, perfectly fit and without burrs. It can withstand all weather conditions and is not easily damaged. Shackles are used in lifting operations and static systems as removable links to connect steel cables, chains and other accessories. Threaded-bolt shackles are mainly used for non-permanent applications. This 304 stainless steel D-ring shackle lock is widely used for hanging sandbags, home, mountaineering, hiking, anchor chains, sailing accessories, heavy screw chains, hooks and other attachment connections. Specifications: Material: 304 Stainless Steel Color: Silver Size Optional: 4mm/5mm/6mm/8mm/10mm/12mm/14mm/16mm Size: As The Picture Shows Package Includes: 1Pc x U Shape Shackle note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!