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PURPOSE : A golf club head with a plurality of ribs is provided to have a longitudinal axis which is able to change at an external common point of a main body.CONSTITUTION : A golf club head has a main body and a plurality of ribs. The main body has a heel end portion(30), a toe end portion, a sole, a front face, and a rare face. The plurality of ribs is protruded from the rib of the main body. The plurality of ribs has a first rib with a first longitudinal axis, a second rib with a second longitudinal axis, and a third rib with a third longitudinal axis. The first, second, and third longitudinal axis has an external common point of the main body.COPYRIGHT KIPO 2013