What a good idea - need a new hang point on your vest, sling pack, back pack, then these are the answer. The unit has a locking allen screw (tool provided), and can be fitted easily in a few moments. 

Use on the outside of your vest to secure small items like nippers, tippet spools etc or inside a pocket to safely store your keys. (Not suitable for large items like a net)

Like all Tiemco items, these a high quality products designed to enhance your time on the river