PURPOSE: To improve the adsorption and absorption of hand grease, moisture, and damp by throwing in a polishing pellets composed by mixing cristobalite or zeolite as a porous stone powder, and polypropylene or polyethylene as a synthetic resin powder with a hardness and an adequate viscosity in a specific ratio, in a polishing device.

CONSTITUTION: When pellets 1 are manufactured, crstobolite or zeolite is used as a porous stone powder, while polypropylene or polyethylene is used as a hard and adequately viscid synthetic resin powder, and 5 to 15% stone powder and 95 to 85% synthetic resin powder are mixed in this ratio. As the size of the pellets, they are formed in a round shaft form of the diameter 2.5W3.0mm and the length 3.0W3.5mm level, for example. By throwing in the pellets to a polishing device 2 to collect pachinko balls and to store them temporarily in the circulation passage of the balls in a pachinko hall, the balls are stirred and mixed with the pellets 1, and the dirt, moisture, or damp attached to the balls are adsorbed and absorbed by the pellets.