A starter block and a shingle are utilized to form courses that may be positioned in overlapping fashion on a roof to form a roofing covering system. The settings of the mobile electronic device which are adjusted may be security settings, filter settings, or status for instant messaging in dependence on the determined location of the mobile electronic device. As the area of the screw lever exposed to the outside of rotary lever holes of a barrel and the cartridge m reaches a maximum, the piston fastened to the screw lever in a threaded manner moves forwards when the screw lever is rotated, so that contents are pushed from the cartridge and are discharged through a contents moving part to the nozzle.