Supply Giant fitting brush is the perfect tool to clean any copper fitting or tubing. Plastic handle is especially designed for a comfortable and secure grip to avoid slipping. Bristles are coarse so they can easily remove any rubbish or corrosion from fittings and tubing. Portable, lightweight, and easy to use. Can be used by anyone, not only professionals. No prior experience required. ⚠ California Proposition 65 Warning: This product is known to the state of California to cause cancer, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.