Mold aluminum milled CNC machine, complete with ring attack lead. For weights bolentino lightweight, 5 figures for the respective weights 20,30,40,50,60 grams
As you can see is not circular like normal sinkers but pear-shaped ellipse, this reduces tangles as it aligns the current and limits the twisting of the beam. The engagement ring is of circular form of large cross section (4mm) the wire is much less stressed to the node with respect to a plumb with the ring steel usually from 0.7-1.0 mm in diameter..