ESZ spool connector is designed for all ESZ Tenkara rods. Instead of untying the line from Lillian, you can clip the connector to the rod and install the line holder to the connector to wrap the line. This function helps you organize the line when you are switching spots. Because the line is wrapped directly on the line holder, it will protect the line from getting fold mark. The product can fit both foam and silicone line holders sold on our website.