The Mustad 32786BLN is a premium, extra-strong, 60 degree round-bend jig hook, it is black nickel-plated, These hooks feature Mustad's Ultrapoint, and Mustad's Nor-Tempered resulting is an ultra sharp, ultra strong needlepoint that delivers quick, easy penetration... and longer performance. 50 Pack.ULTRAPOINT is created using state-of-the-art, three stage Opti-Angle sharpening technology which removes less metal from the point than traditional methods - without compromising sharpness.ULTRA STRONG The hook is then put through innovative three stage computer-controlled tempering process - Nor Temper. This advance heat treatment transforms the hook into a fine grained, ultra strong micro-structure, increasing the strength up to 30% compared to conventional tempering methods.