This report appears to be copied from the manufacturer's description.
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The RBK 4K stick is RBK's most affordable one-piece composite stick, and features a quality compression molded construction of graphite and fiberglass laminates from continuous filaments.  The stick's Acuflex® design creates a low flex point and low torque shaft for more accurate shots.  The solid pre-preg graphite and fiberglass blade provides stiffness and durability, and the shaft has a reduced sphere geometry for comfortable grip.  Other features include:  NHL White Shield designation, overall weight of 530 grams, durable clear coat finish, 85 flex rating, 58" length, and various curve options.