This is a set of 5 black HKM hook keepers that I used for rod building and actual fishing. They open and close without any problems. How about using them for repairs or rod building? There may be some epoxy residue from removal, but please remove it before use. There are no noticeable scratches or cracks, and they seem to function without any problems, but they are used items, so they are not perfect. This is just my personal opinion, so please be aware that I may have missed some scratches. Please understand and check the photos, and no returns, no claims, no returns.