The oval-shaped brush with stiff bristles is effective for scrubbing inside large industrial tanks and other large container-like equipment. The rounded edges work well to clean down the sides of equipment. It also fits well into large channel drains. FDA compliant. 250°F maximum temperature. Dishwasher safe. Euro (hygienic) thread type. Polypropylene block material. Polyester bristle material. 8.3" L x 5.1" W x 3.7" H.