Strong and durable. Made with high quality brass so it will not crack, rust or corrode. Through precise machining, solid brass components can be perfectly balanced to maintain maximum stability at all retrieval speeds. Unique and unbreakable strike-attractor bead can generate loud noise when it collides with lure body, to entice more fish to strike. These spinner beads great for DIY anglers, crafts, perfect used for trout, bass, salmon trout, walleye, blue gill, crappie, steelhead, and so on. Package: Size1: 0.16*0.12 inch/ 4*3mm, 1/160oz/0.2g, 20/50 in total Size2: 0.16*0.16inch/ 4*4mm, 1/160oz/0.2g, 20/50 in total Size3: 0.16*0.16inch/4*4mm, 1/160oz/0.2g, 0/250 in total