[ SIMPLE AND EFFECTIVE ] Keep tippet spools in order and readily available [ HIGH-ACITY ] Holds up to 5 tippet spools,easy to use [ NO RUST ] Bla anodized aluminum bar,lightweight and corros resistant [ FLEXIBLE ] Built-in bune cord,strong spring force,easy to stretch [ ALUMINUM CARABINER ] Attach to fly vest or just about anything that's convenient.