Atlas Mike's Magic Thread (2 Spools). We call it "Magic" because that's what it is! Magic Thread makes tying bait sacs easier and faster. Just three turns around the stem of the sac, pull tightly; then three more turns and pull tightly again. That's all! No knotting required! Simple and effective. Also makes an excellent bait saver. Wrap around bait on hook or lures to hold bait on longer. Works with shrimp, herring, sardine, salmon roe, crayfish, prawn, etc.) Now get double the amount of the single spool bag!