Features: Sturdy stainless steel construction ensures load bearing capacity, making it ideal for liftings and rigging applications. The innovative U shape designs with thread pin or quick releases mechanisms enhances tensile strengths while optimizing load distribution across critical stress point. Designs for construction workers, transport professionals, and industrial riggers requiring secure connection for heavy equipment and materials. Addition for bridge building projects, cargo securing on trucks, stage rigging setups, and marine equipment anchoring in harsh environment. The shackle features double safety locking systems that complies with standard for accident prevention during high stress operations. Specifications: Component: Stainless Steel Size: 1.6x0.82x0.86x0.39cm/0.63x0.32x0.34x0.15inch Package Includes: 5pcs U Shape Shackle note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.