A one body member solid molded bat handle grip manufactured from thermoplastic material or the likes for improving the gripping control of the batter for baseball or softball, which is useful for left handed or right handed players. A magnetic recording media made by forming at least a magnetic coat and an overcoat on a substrate of non-magnetic magnetic disk on which surface a liquid lubricant having a structure of perfluoropolyether is coated, wherein average roughness of overcoat surface Ra is less than 0. Therefore, the one or more embedded watermarks could be extracted by comparing the predicted data sets in the high subbands with data sets in corresponding subbands of the watermarked image. 0%, and a metal molar ratio of the at least one element contained in the compound layer to nickel contained in the active material is in a range of 0.