The new Owner STX-58 triangle is made of a completely new type of wire that is 20% stronger than the high carbon steel wire used so far. This new ZO-WIRE wire made it possible to make triangles of smaller diameter, and at the same time stronger and stronger than ever. The most important characteristic of the triangle in the bite is the thickness of the wire. ZO-WIRE hooks are stronger in diameter than any hook on the market. The hardness of the ZO-WIRE wire makes the tip of the hook almost indestructible. Standard size, straight and slightly curled at the super needle tip. These triangles are coated with a special vacuum finish that prevents corrosion.