Product Description Harken System B CB Intermediate CarA 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 re-cut your sail. The one-piece solid aluminum construction is lightweight and strong. The free-rolling ball bearing cars let you hoist and reef the main quickly on all points of sail.Specifications: Length (mm) 68 mm Length (in) 2 9/16 in Width (mm) 70 mm Width (in) 2 3/4 in Weight (g) 191 g Weight (oz) 6.8 oz Maximum working load (kg) 238 kg Maximum working load (lb) 524 lb A (mm) 68 mm A (in) 2 9/16 in B (mm) 39 mm B (in) 1 9/16 in D (mm) 19 mm D (in) 3/4 in E (mm) 6 mm E (in) 1/4 in