Abstract: An electric toothbrush assembly with sterilizing and charging devices including a housing, a battery casing and an electric toothbrush. The housing is equipped with an ozone unit and a charging unit. The battery casing may be inserted into the electric toothbrush to provide a supply of power.

Abstract: A cutting tool capable of cutting slices of a predetermined thickness. The cutting tool includes an elongate handle, a sheet-like blade connected to the handle and having a sharpened lower cutting edge, an L-shaped support piece connected onto the blade adjacent to the handle, the support piece having a part thereof perpendicular to the blade and provided with an internally threaded hole, a press piece consisting of a press seat, a horizontal upper portion and a vertical portion perpendicular to the upper portion, the press seat being dimensioned to match the part of the support piece with the hole and having an elongate slot, the vertical portion having a width slightly greater than that of the blade, and a rotary knob having a cap and a shaft projecting from a bottom thereof, the shaft having outer threads for matching the hole of the support piece so that the shaft may be passed through the slot of the press seat and locked in the hole of the support piece.