The ultimate in strength and durability. The steel ball bearing MA100SS combined with the genius Mustad Fastach(TM) connector made from our Mustad&';s premium hook wire. The Mustad Fastach(TM) connector lets you change hooks or leaders in seconds with a simple twist. Black nickel finish. Stainless steel ball bearing swivel Black Nickel finish Size 0.1 breaking strength is 25LB Size 1.2 breaking strength is 50LB Size 2.3 breaking strength is 75LB