To improve the dust-preventing property of the surroundings of a keytop for force feed in a force feedback mouse having right and left side operation buttons and a central keytop for force feed.

This force feedback mouse is provided with an operating part configuring component 30, and the operating part configuring component 30 is configured as a molded component made of rubber with a predetermined shape and with width made different as necessary according to its place. This operating part configuring component 30 is provided with operating button parts 13 and 14 at the right and left sides and a keytop part 15 for force feed formed between the operating button parts 13 and 14, and a bellows part 31 is formed in the surrounding section of the keytop part 15 for force feed. The bellows part 31 enables the movement of the keytop part 15 for force feed, and occupies between the keytop part 15 for force feed and the operating button parts 13 and 14.

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