The 523 is a 3XL version of the 516. To compensate for the additional leverage generated from the extended length I increased the wire diameter by one size, e.g. 523 #10 and 516 #8 have the same wire diameter.

This is a3X long lengthhook with a1X gape. It has a60 degree down eyeand is formed from aheavy weightwire. Available in sizes #4 to #14.