Sun Moon 20Pcs Grey Fishing Line to Hook Clip Connector Swivels Barrel Swivel with Safty Snap Connector Flexible rotation, not easy to wind around the fishing line Made of high quality materials and guaranteed by strict inspection and production Material: stainless steel; Color: Grey; Weight:20g Size: #4 Length: 4.5 cm/1.77 inch;Test:15kg/33 LB While regular hooks can be effective, fish line clip connector help catch a greater quantity of bass fish