Based on my experience this product is an excellent option for anyone who needs a self-locking shackle in their industrial and scientific workflow .The adjustable capacity is a huge pro, as it makes it easy to adapt to different tasks and equipment. The locking mechanism is also very secure, ensuring that you can trust the Anndason shackle with your most valuable TOOLS. My only con would be the initial learning curve to adjust the self-locking mechanism correctly. Overall, highly recommended for anyone who wants durability and convenience in their workholding tools..