Tronix rubber stops have become a must have item in rig tying. The 3L size are ideal on hooklengths above sequins to make bait stops, while the 4L size are fantastic on rig bodies to trap swivels. Use in place of crimps for adjustable rigs.
Size 3L is for lines up to 30lb. Size 4L is for lines 30lb-80lb. Come in packs of 30.