1. Ideal for Boat Chains Suitable for chains or ropes with a diameter of 68 mm (0.240.31 inches), ensuring an ideal fit for most standard boat chains. The locking mechanism securely holds chains in place, preventing unwanted movement and enhancing the safety and reliability of your boat's anchoring system. 2. Robust Performance The chain stopper is manufactured to meet factory standards and undergoes strict quality control, delivering consistent and reliable performance. Whether securing a boat or anchoring your vessel, this product helps maintain stability and safety, making it an indispensable marine hardware accessory. 3. MirrorPolished Surface The smooth, mirrorpolished surface of this chain lock is designed to complement the modern aesthetics of boats and yachts. With a refined finish, it enhances both visual appeal and smooth operation, making it an essential component of your vessel's marine hardware. 4. 316 Stainless Steel Construction This anchoring chain lock is made from 316 stainless steel. Designed for use in marine environments, it is the ideal choice for boats, yachts, and other vessels requiring a durable, longlasting marine hardware solution.