Part No. 1777 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. Slider Battcars offer a lightweight, cost effective way to raise, reef, and douse mainsails. Hardcoat-anodized aluminum cars slide on low-friction plastic inserts. The compact car size translates into reduced weight and stack height. Length (mm)51 mm Length (in)2 in Width (mm)32 mm Width (in)1 1/4 in Weight (g)32 g Weight (oz)1.1 oz Maximum sail area - monohull (m²)33 m² Maximum sail area - monohull (ft²)350 ft² Maximum sail area - multihull (m²)28 m² Maximum sail area - multihull (ft²)300 ft² Maximum working load (kg)91 kg Maximum working load (lb)200 lb