The present invention provides in some embodiments, a portable device for massaging and treating a person's muscles. The device can include an elongate center shaft and a roller section rotatably positioned about the outer surface of the elongate cylindrical center shaft and extending at least a portion of a distance between the first end of the elongate cylindrical center shaft and the second end of the elongate cylindrical center shaft. The device can also include a first and second handle coupled to the elongate center shaft. The first and second handles can be configured to collapse in order to decrease an overall length of the portable roller massager.