A retractable interdental brush includes an interdental brush, a retractable mechanism, and a handle. The retractable mechanism is configured to drive the interdental brush to extend from the handle to clean a gap between teeth. After use, the interdental brush is retracted into an accommodation space of the handle through the retractable mechanism. The interdental brush may be a built-in interdental brush. When the built-in interdental brush is used for cleaning, a brush body may be first retracted into an elbow at a front end of a delivery device, an outlet of the elbow is pressed against the gap between teeth to push the brush body, and a working portion of the brush body and enters into the gap between teeth to clean the gap between teeth, thereby resolving a problem with existing interdental brush that easily stabs gingival tissue due to a difficulty of alignment with the gap between teeth.

A tri-position hairbrush includes a modular bristle-bed, having a plurality of bristles connected thereto; and a handle, connected to the modular bristle-bed. A switching unit operates to switch and convert the modular bristle-bed among three operational states. In a first operational state, which is a Closed State, the modular bristle-bed is arranged as a cylindrical structure that spans 330 to 360 degrees of curvature, and the hairbrush operates a round hairbrush. In a second operational state, which is a Semi-Open State, the modular bristle-bed is arranged as a curved cylinder-portion of 150 to 210 degrees of curvature, and the hairbrush operates as an open-curve hairbrush. In a third operational state, which is a Fully-Open State, the modular bristle-bed is arranged as a generally-flat surface, and the hairbrush operates as a paddle hairbrush.

A tri-position hairbrush includes a modular bristle-bed, having a plurality of bristles connected thereto; and a handle, connected to the modular bristle-bed. A switching unit operates to switch and convert the modular bristle-bed among three operational states. In a first operational state, which is a Closed State, the modular bristle-bed is arranged as a cylindrical structure that spans 330 to 360 degrees of curvature, and the hairbrush operates a round hairbrush. In a second operational state, which is a Semi-Open State, the modular bristle-bed is arranged as a curved cylinder-portion of 150 to 210 degrees of curvature, and the hairbrush operates as an open-curve hairbrush. In a third operational state, which is a Fully-Open State, the modular bristle-bed is arranged as a generally-flat surface, and the hairbrush operates as a paddle hairbrush.

A personal care brush includes a brush head portion and handle portion with an exposed groove for receiving a first container that stores one to six doses of a facial or oral care product. The groove leads to a channel that runs through the brush head to an opening at a bristle frame side of the brush head. A pushing member is manually advanced along the groove to push product from the first container into the channel and out through the opening. A member located at a backside of the brush head is movable relative to an axis of the toothbrush. The member has a first position for personal care applications and a second position for facilitating exposure of the channel for channel cleaning.

A cosmetic article including a case and a applicator that is fastened to the case but movable relative to the case between a retracted position and an extended position, in which the applicator extends outward from the case further than in the retracted position. The applicator includes a body and protuberances, at least some of which are arranged so as to be movable relative to the body between a retracted position and an extended position, in which the protuberances extend outward from the body further than in the retracted position.

Controllable brush, comprising a bristle carrier (BC) having a plurality of bristles (B), and a supplementary carrier (SC) having a plurality of protrusions (P), a distance (d) between the supplementary carrier (SC) and the bristle carrier (BC) being modifiable, whereby decreasing the distance (d) results in the protrusions (P) being inserted through the bristle carrier (BC). Decreasing the distance (d) results in the protrusions (P) being inserted inside the bristles (B). Alternatively, decreasing the distance (d) results in the protrusions (P) being inserted between the bristles (B). The controllable brush may further comprise an actuator for modifying the distance (d), and a control unit for controlling the actuator in response to a sensor output. The sensor may be arranged for measuring a force experienced by the brush. Alternatively, the sensor may be a camera of a smartphone.

A brush includes a housing and a brush head. The brush head is slidably engaged with the housing to vary a bristle density of the brush head.

A make-up brush system includes a mandrel having a first end and a second end. The first end includes a gripping surface for engagement with a hand of a make-up artist and the second end being shaped and dimensioned for selective engagement with a plurality of make-up brushes. A plurality of make-up brushes is provided. Each of the plurality of make-up brushes includes a first end and a second end, the first end including a functional component of the make-up brush and the second end including a coupling member shaped and dimensioned for selective engagement with the second end of the mandrel. The system also includes a case both supporting and sanitizing the various components of the present invention. The case includes a tray supporting the plurality of make-up brushes in accessible positions within the case.

There is provided a cleaning tool configured for cleaning an aerosol-generating device including a heating chamber and a heating element disposed in the heating chamber, the cleaning tool including: multiple prongs configured to be inserted into the heating chamber of the aerosol-generating device and to clean at least the heating element; and an actuating element configured to move the multiple prongs between a first position and a second position, wherein the multiple prongs are expanded towards inner sidewalls of the heating chamber in the first position and contracted towards the heating element in the second position.

There is provided a cleaning tool configured for cleaning an aerosol-generating device including a heating chamber and a heating element disposed in the heating chamber, the cleaning tool including: multiple prongs configured to be inserted into the heating chamber of the aerosol-generating device and to clean at least the heating element; and an actuating element configured to move the multiple prongs between a first position and a second position, wherein the multiple prongs are expanded towards inner sidewalls of the heating chamber in the first position and contracted towards the heating element in the second position.