The advantage is that you can use lighter elastics for small carp, but tighten it for netting if you hook a bonus fish.

This means you don’t need to play and net big carp on top 5s or 6s, which leads to better control, faster netting and less pole breakages.

Dimensions; 12mm at the thin end 25mm at the thick end. Hole through the tube is 3.3mm.