Top quality, Professional hooklength boxes were manufactured of the high grade plastics. They were produced with the maximum care for details. The most important elements such as poles for hooking the hook or the loop are perfectly smooth and have perfect shape. The thickness and shape of the poles is extremely important when using smaller hooks. There is fourteen rows of poles in each box for hooklengths. The fifteenth row is higher and is purposed for measuring the line length while tying. The poles are positioned in the specific distances. In shorter box you can keep up to 140 hooklengths measuring 7.5, 10, 12.5, 15, 17.5 or 20 cm. The long box can keep up to 140 hooklengths measuring 25, 30, 35 or 40 cm. The boxes have magnet closures. Smaller has two pairs of magnets while larger four pairs. There is a gasket in the lid. The line kept away from air and UV rays keeps its freshness for longer. There are robust hinges with stainless steel pins for long use.