Electric toothbrush

An electric toothbrush comprising a handle and a refill having a longitudinal axis and structured and configured to be attached to the handle via a coupling device, the handle having a drive mechanism and the refill having a brush head and a motion transmitter functionally connected to the brush head for driving the brush head,

• wherein the handle comprises a coupling stem having outer walls extending in a direction substantially parallel to the longitudinal axis and terminating with a free end, the coupling stem further having a coupling pin extending therefrom in a direction not parallel to the longitudinal axis,
• wherein the refill includes a generally tubular portion formed by refill walls defining therebetween an interior space structured and configured to accept therein the coupling stem of the handle when the refill is being attached to the handle,
• wherein the coupling device comprises a pair of mutually opposite cantilevered arms disposed adjacent to the refill walls in the interior space of the refill, wherein each of the cantilevered arms extends in a generally circular or semi-circular manner around the longitudinal axis in a plane substantially perpendicular thereto, wherein each of the cantilevered arms is resiliently deformable and terminates with a coupling surface structured and configured to engage the coupling pin of the coupling stem for secure and disengageable connection therewith.