To provide a sucker advantageous in improving its mechanical strength.

The sucker 10 comprises a sucker body 12, a center shaft 14, and a spring body 16. When the sucker 10 is pushed against a sucked face with a sucking face 18 of the sucker body 12 facing the sucked face to put a space between the sucking face 18 and the sucked face into an almost vacuum condition, the sucker body 12 sucks the sucked face. Since the spring body 16 is provided on the sucker body 12, the elastic force of the spring body 16 in addition to the elastic force of the sucker body 12 operates on the sucker body 12. So, in the state that the sucking face 18 sucks the sucked face, greater force is given to the center of the sucker body 12 which tends to leave the sucked face, thus improving the close contact of the sucker 10 with the sucked face. An accessory can be mounted on the sucked face in a more stable state.