The invention provides a zoom lens system that is reduced in terms of both size and cost. The body wash composition is formulated so that it may be applied during normal hygiene activities, such as washing. A distance from an end portion of the first opening in the opening direction to an end of the extending portion when the shutter member is in the closing position is longer than a distance of an end portion of an exposable portion of the first seal member when the shutter member moves from the closing position to the opening position. In addition, each frame has a pair of transverse sides which are substantially perpendicular to the first and second lateral sides.