An excellent replacement for your old or broken one | Compatible with ALL Water profer case for Gopro Hero 3 2 1 | This waterproof shell lock shell catch is sturdy enough for using. Adopting high technology, it does well in waterproofing, so you can use you camera freely. | If your primary waterproof shell lock catch is broken or aged. This item is good choice for you!! | If you have any question. Pls feel free to contact us.