This is a 100% functional and reliable "Back Lead", which are used for sinking under the water line before the rod tip. Thanks to leading the line along the bottom and the fish did not get scared. Also thanks to him in the line afloat nemotají boats, floating debris or fish that are climbing on another member. Special coating helps longevity. Dark green paint finishes are suitable for most types of bottoms on all waters, where you fish with them.