Abstract: A stylus pen includes a penholder comprising a rod body and an electrode structure disposed on the rod body and a pen core comprising a tip portion located at one end of the rod body and an insertion portion connected to the tip portion and removably inserted into the rod body, the tip portion is spaced apart from the electrode structure, the insertion portion is electrically conductive, and the tip portion is made of material being electrically conductive and writable on paper.

Abstract: Disclosed is a powder sifting device comprising a housing and a frame, the housing has a first opening communicating a second opening on which a screen is provided to form a receiving space delimited by the first and the second opening; the frame, that is received in the receiving space, is provided with a holding part at one side adjacent to the first opening and provided with a sweeping element proximately covering on the screen at other side, wherein the frame is driven by the holding part to rotate within the receiving space, and the sweeping element is moved along with the holding part to sweep over the screen according to the present invention, so that the effort-saving and easy-operation powder sifting device is obtained.

Abstract: Disclosed is a powder sifting device comprising a housing and a frame, the housing has a first opening communicating a second opening on which a screen is provided to form a receiving space delimited by the first and the second opening; the frame, that is received in the receiving space, is provided with a holding part at one side adjacent to the first opening and provided with a sweeping element proximately covering on the screen at other side, wherein the frame is driven by the holding part to rotate within the receiving space, and the sweeping element is moved along with the holding part to sweep over the screen according to the present invention, so that the effort-saving and easy-operation powder sifting device is obtained.