For use with eel fishing in mountain areas and upstream: The set of 20 eels fishing hook uses sturdy wire and high quality hooks to provide a strong set of hooks, so it can be used for rigging eels in mountain areas and upstreams.In addition, the color of the wire is not too thick or noticeable, so it is difficult to be warned.It is also made of durable wire that is difficult to bite.Size and Strength Variations: Set of 20 eel fishing riggers are available in 3 sizes: M, L, LL.As a countermeasure for big objects, the hooks are made with thicker wires.Medium size is 20LB, Large size is 40LB, LL size is 70LB.Please check the proper size needle according to the size of the eel.About catching fish and dowel bodies: If you want to run the rigging through the body of a bait fish or dowel please cut the swivel before use.Wire and Hook Size: All wire sizes are 7.9 inches (20 cm). The fish hook size is Medium (25mm x 11mm x 9mm), Large (29mm x 13mm x 10mm), LL (36mm x 16mm x 12mm).