PROBLEM TO BE SOLVED: To provide a plaster sticking tool for sticking a plaster or poultice, a body warmer to be attached to a body, a home magnetic therapy device, or the like to the back by one person. SOLUTION: A sheet file 30 is arranged on a convex surface 10 forming a part of a spherical surface, a slit 40 is arranged in the vicinity of the sheet file 30, and a metal screw 60 is further arranged at a substantially center position of the convex surface 10. A plaster or poultice placed on the surface can be attached to any part of the back using a handle 20 provided on the convex surface 10. [Selection diagram] Fig. 1
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