The Owner STX-58 Treble Hook features a new type of wire that is 20% stronger than the high carbon steel currently used in all Owner Hooks. This new ZO-WIRE helps create hooks that are smaller in diameter, yet stronger and harder than ever before. The single most important characteristic for hook penetration is the wire diameter. The hardness of ZO-WIRE makes the point almost indestructible. Standard length, straight slightly curved in super needle points, and corrosion resistant vacuum tin finish.