Abstract: A keyswitch includes a board, a cap located above the board, a membrane circuit board disposed on the board to make first and second engaging structures of the board protrude from first and second holes of the membrane circuit board respectively, and a lifting device. The lifting device is connected to the cap and the board and includes first and second support members. The first support member is movably connected to the cap and has a pivot end portion. The pivot end portion is movably connected to the first and second engaging structures and has a first abutting portion extending toward edges of the first and second holes along a pivot axis of the first engaging structure. The first abutting portion abuts on the membrane circuit board. The second support member rotatably intersects with the first support member and is movably connected to the cap and the board.

Abstract: A foldable open container formed of a sheet of irregularly shaped hard paper. The container comprises a main board comprising four sectors each having a substantially trapezoidal side board and substantially trapezoidal four bottom boards; and an integral inner board comprising a main portion, four side flaps, and a central hole on main portion. In use, user may insert his/her thumb into a heart-shaped opening on a side flap while holding the container by hand. Hence, for example, a waffle dish containing ice cream may be supported on the central hole. Further, a spoon may hang on an arcuate slot on the main portion.