Thank you for viewing. This is a ratchet from the C14 ankle strap, which was the top-of-the-line carbon highback at the time, although I've forgotten the exact year. It's a used item, but it's very clean and in excellent condition. The spring isn't stretched, and I tested it by attaching it to the toothed band and it worked perfectly. Screws are also included. Free shipping and same-day dispatch.