Abstract: A roller hairbrush that is separable into two parts: a hairbrush roller and a handle. The hairbrush roller has a roller body along which a plurality of bristles is oriented. Further, an ejection mechanism is housed in the roller body and is used to disengage the handle from the roller body. An engagement shaft of the handle is positioned into a receiving volume of the hairbrush roller. A plurality of lateral extrusions of the engagement shaft is slotted into a plurality of lateral channels of the receiving volume, wherein the handle is unable to rotate within the roller body. The handle includes a gripping shaft below the engagement shaft for holding the handle. Furthermore, a locking mechanism is integrated into the gripping shaft and the engagement shaft, wherein the locking mechanism secures the handle to the hairbrush roller.