LOFTSAILS TEAM EDITION MAST EXTENSION RDMWe optimize all components for performance windsurfing. Loftsails mast extensions bring reliability and ease of use to a new level. The extension tube is made using anodized aluminium to prevent saltwater corrosion. The 3 wheel pulley block is of 100% moulded metal construction. Both SDM and RDM models are compatible with 4 roller tack pulleys. Spectra line is featured as standard.