aqua bound sting ray carbon 2-piece kayak paddle, black cr blade/posi-lok carbon shaft, 240 cm aqua bound the aqua-bound sting ray carbon has mid-sized blades (91 sq. inches) made of abx resin reinforced with carbon fibers. couple that with its all-carbon shaft, and this paddle weighs in at just 28.75 ounces, the lightest flat water injection molded kayak paddle available under $200. this gives the sting ray carbon a low swing weight and makes for a more comfortable journey. the sting ray carbon offers the posi-lok ferrule system which clicks into position firmly and securely. the posi-lok features strong, corrosion-free composite construction, convenient dual-button release, and infinite feathering angles. licensed ferrule us patent no. 6,881,111. the sting ray carbon is available in lengths from 210cm to 250cm in increments of 10cm. aqua-bound paddles are always assembled with pride in the usa!