PURPOSE: To easily and securely fix the end of a flexible tube to an aerosol valve, by fixing the end of a flexible tube to a fastening bush and fixing the fastening bush to a body to be fastened.

CONSTITUTION: One end 2 of a flexible tube 1 is inserted in the opening at the bottom of a fastening bush 4 and fixed thereto by forcing a claw 9 provided at the opening to bite the tube and next, the larger opening of the fastening bush 4 is fitted to the joining part 12 of an aerosol valve 7 and fixed thereto. Next, the other end 3 of the flexible tube 1 is inserted in the opening at the bottom of a fastening bush 5 and fixed thereto in such a state that the end protrudes a little forward by the length of weight 6 of the other body to be fastened, by forcing a claw 9 provided at the opening to bite the tube. The larger opening or the fastening bush 5 is fitted to toe joining part 8 of the weight 6 and fixed thereto. Accordingly, only by pushing the large diameter part of fastening bush of the flexible tube 1 into the joining part of the body to be fastened, the fastening bush of the flexible tube 1 can be joined with the body to be fastened.