This is our most popular model of snap swivels. Each has an interlocking snap and split-ring line connection. Per 24. Size Lb. Test Length (in.) Color(s) 1 10 7/8 Nickel, Black 2 20 1-1/8 Nickel, Black 3 30 1-1/4 Nickel, Black 4 35 1-5/8 Nickel, Black 5 45 1-7/8 Nickel, BlackCancer and Reproductive Harm- Type: Snap Swivels.