A back-scrubber is a tool used to clean the body, usually in the shower or bath. It can be made of a variety of materials, including LOOFAH (6 letters), loofa (5 letters), SWAB (4 letters), and BRILLO (6 letters). LOOFAH and loofa are both derived from the fibrous interior of a dried gourd, while SWAB and BRILLO are synthetic materials. All of these materials are used to exfoliate the skin and remove dirt and dead skin cells.