Abstract: A safety door stopper includes a V-shaped body and a fixed hook ,wherein the fixed hook is provided on a top edge of the V-shaped body, and two supporting plates are fixed within the V-shaped body to reinforce a supporting strength of the V-shaped body. A movable hook is connected to the fixed hook via a hinge shaft. By hanging the safety door stopper on a hinge between a door and a doorframe via the fixed hook, two plates of the V-shaped body are supporting in a gap between the door and the doorframe, so as to prevent sudden close of the door.

Abstract: An electric-powered device includes (1) a skin-contactable surface and (2) a body having a water-resistant switch assembly. Preferably, the electric-powered device is useful in skin treatment and delivers mechanical forces on the skin. The switch assembly preferably includes, a substantially planar mount having an aperture, a rotatable shaft extending through the aperture, and a seal lining the aperture to restrict water movement along the shaft.