A Harken® Battcar system along with full-length battens helps raise, douse, and reef with ease and acts as extra crew if you’re sailing shorthanded. Battcar systems outperform in-mast or in-boom furling, cost less, and you don’t need to recut your sail.Track is extruded from high-grade 6061-T6 aluminum and hardcoat-anodized for a hard, long-lasting surface. For masts without internal sail track, attach 2720 Small Boat traveler track by drilling and tapping the spar. Join track sections with splice links. Order one per track section. Order one low-beam endstop (sold in pairs).om furling, cost less, and you don’t need to recut your sail