A fingerprint verification device includes a fingerprint sensor including an imaging surface. The waterproof material is a foamed rubber sheet sandwiched by an inner silky fabric layer and an outer fabric layer. The paintball gun components can be packaged together or separately. In one specific application, the solder may be used to manufacture a flip chip or other microelectronic component which includes self-fluxing solder balls. Accordingly, a plurality of stages will not have to be placed right under the projection optical system interchangeably, which can suppress an increase in footprint of the exposure apparatus. The lever device, which assists the pivoting movement of the pivoting arm on the main body of the kitchen appliance, makes it possible to provide an operation which is safe for a user, since the movement of the pivoting arm is always controlled by the lever device.