These pole elastic connectors from Drennan have a unique locking sleeve to ensure the rig cannot come off during fishing. The four sizes are supplied in different colours for instant identification.2 connectors per pack.Recommended useMicro - 1 to 4 elastic 0.08 to 0.1 rig lineSmall - 4 to 8 elastic 0.09 to 0.12 rig lineMedium - 8 to 14 elastic 0.1 to 0.16 rig lineCarp - 14 to 20 elastic 0.15 to 0.25 rig line ....(continued here)