The present invention relates to a horizontal molding method and apparatus of an interior material of a vehicle. The optical device further comprises an electrode arrangement for controlling the shape of the interface by means of a voltage; and means for preventing the interface from an exposure to an external electric field. The invention preferably includes a housing separating a magnetic drag coupling assembly from the fluid path. The paint tray bag further comprises an extended drop sheet which unfolds from the bag to provide an extended area for the drop sheet. A real color value is determined with the color measurement unit if the measurement region of the color measurement unit is arranged in a region of the positioning marking. A lead is advanced along the lumen of the sheath from the proximal end of the sheath body to the distal tip.