Releasing the snags is quite an important issue in bottom fishing. The ingenious fisherman from the Moselle river came up with an interesting way of doing it and 'patented it” a sinker on a reflecting spring. It is attached to the main line with a carabiner with a safety pin. A ground weight is tied to the other end of the spring. In the case of a hook, you only need to tighten the line tightly and quickly release it. The stretched spring shrinks rapidly and the energy of this impact "catapults" the lead from the catch.
Reflecting spring
