PURPOSE:To obtain the comfortable ball strike feeling and prevent the generation of sport disease by supporting a mass body onto an elastic chord laid between the opposed walls in noncontact with each side wall in a hollow part formed at a part of the frame of a hard skelton body which is constituted from a ball strike part and a grip part and forming the part between the mass body and the side wall of the hollow part with a gel layer containing the silicon gel having a specific value of the needle penetration degree as basic material. CONSTITUTION:A mass body 5 is arranged, separating from each side wall which constitutes a hollow part 4, in other words, the inside walls of a bifurcated part 31 and a lateral frame piece 21, and an elastic chord 6 is laid between the root of the bifurcated part 31 and the lateral frame piece 21 so as to longitudinally traverse the bifurcated part 31 of the frame, and the mass body 5 is supported in the middle of the elastic chord 6. In the state where the mass body 5 is fixed at a prescribed position in the vertical direction on the elastic chord 6, a gel layer 7 containing silicone gel as basic material is arranged on the periphery of the mass body 5. As the silicone gel in the gel layer, the silicone gel having the needle penetration degree of 50-200 or the complex silicon gel which is formed by mixing micro hollow spherical bodies into the silicone gel is preferably used.
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