outlet 42 so that a shaft 71 of the cover 7 is rotatably inserted into the shaft hole 44 the ribs 45 respectively have vertical protrusions 451 which are respectively fit and fixed into the vertical grooves 13 of the cylindrical main body 1 furthermore as shown in fig4 a the cylindrical main body 1 may further include a retaining jaw 16 formed on the inner circumferential surface so as to be fixed more stably when the vertical protrusions 451 of the blocking member 4 are fit and fixed into the vertical grooves 13 of the cylindrical main body 1 in the meantime the button 5 and the push rod 6 are formed integrally and the cover 7 has a space formed at the center of the top for fitting the push rod 6 therein and an arc shaped elastic piece 72 formed integrally at the front so that they serve as a coil spring therefore elasticity of the elastic piece 72 operates to return the button 5 the push rod 6 and the cover 7 to their original states and when the button 75 is pressed the cover 7 rotates on the shaft 71 to open the outlets 21 and 42 whereby the contents are discharged out moreover as another preferred embodiment of the present invention as shown in fig6 a torsional spring 8 for providing elasticity is mounted on the shaft 71 of the cover 7 and recesses 46 are formed below the shaft hole 44 of the blocking member 4 for allowing the operation of the torsional spring 8 so as.