Abstract: In order to lower the center of gravity easily, the present invention provides a weight device 3 for model attached to an outer periphery of a wheel of a model car, the weight device 3 having: an annular case 10 extended along a circumferential direction A of the wheel, the annular case 10 having an annular internal space S; and a plurality of weight members 30 arranged in the annular internal space S. The weight members 30 are configured to be relatively movable in the circumferential direction A with respect to the annular case 10b when the annular case 10 is rotated in the circumferential direction A.

Abstract: The present invention provides a weight device for a model car attached to an outer periphery of a wheel of the model car, the weight device having: an annular case extended along a circumferential direction of the wheel, the annular case having an annular internal space; and a plurality of weight members arranged in the annular internal space. The weight members are configured to be relatively movable in the circumferential direction with respect to the annular case when the annular case is rotated in the circumferential direction, and the annular case is attached to the outer periphery of the wheel so that the wheel is idly rotatable with respect to the annular case.

Abstract: Protein fiber having crimp property such that the protein fiber crimps in response to a stimulus is immersed in a solution of protein having a different composition from the protein. The protein having a different composition is infiltrated into the protein fiber and the protein fiber is made crimped.

Abstract: A sender-related control section accepts a gift order from a sender-side client set to the sender side of a gift and a receiver-related control section provides the information about gift orders to a receiver-side client set to the receiver side of the gift concerned are used. The receiver-related control section accepts change of the gift concerned from the receiver-side client and stores the change history information about the receiver in a gift-change-control database. The sender-related control section provides gift-change-history information to the sender-side client when a gift is ordered.

Abstract: A sender-related control section accepts a gift order from a sender-side client set to the sender side of a gift and a receiver-related control section provides the information about gift orders to a receiver-side client set to the receiver side of the gift concerned are used. The receiver-related control section accepts change of the gift concerned from the receiver-side client and stores the change history information about the receiver in a gift-change-control database. The sender-related control section provides gift-change-history information to the sender-side client when a gift is ordered.