Airflo Beach lines have a condensed head length and aggressive tip diameter in order to handle longer leaders and heavy flies, they are also designed to cast well both single-hand and two-hand rods. They are recommended to fit ideally on the new ECHO TH Boost Beach Rods – but the ECHO TH will of course take all your suitably weighted current SH lines too – I’ll have more details of both in about ten days time regarding set-up weights and accessibility