Inova Rapid Link SwivelsThese rapid link swivels from Inova are available in two different sizes for multiple uses of rig building, attaching leads, lures and rigs. Ideal for most types of rig building. Helps prevent twisting of line while casting. There are 10 swivels per pack.Sizes: Size: 4 18kg/40lb test Size: 6 14kg/31lb test.