APPLICATIONS: tubing brush can be used for plumbing Installation, soldering, copper pipes, tubes, brazing, and more. MATERIAL: the handle is durable and thick polystyrene, and the brush heads on both sides are stainless steel bristles with strength. USAGE: The convenient 4-in-1 pipe joint brush can clean the outer and inner diameters of various pipe diameters and clean pipes for a better welding experience. COMFORTABLE GRIP: the pipe cleaner tools are designed with non-slip handle part, provide you a firm and comfortable grip. DURABLE: deburring brush has durability and long service life, which can resist wear, tear, impact, corrosion and flattening of hard bristles. Size: Total length: 20 cm/7.87 inch; non-slip finger grip: 5 inch/12.5 cm; height: 0.87 inch/2.2 cm; large hole diameter: 0.8 inch/2 cm; small hole size: 0.6 inch/1.5 cm; rinsable range: 1/2 inch, 5/8 inch, 3/4 inch and 7/8 inch tubes. Color: As shown. Steps for usage: 1. Cleaning and fitting brush into one hand tool. 2. Remove debris from pipe thread to prep them for soldering and brazing. 3. Thoroughly clean the inside and outside of pipe surfaces. For metal, can clean steel parts, machinery, unprocessed metal parts, paint stains, special corrosion without damaging the surface or its good characteristics, cleaning, polishing, paint removal/rust removal, the tool which makes welding very easy can bring the pipe to shine again. Package Including: 1 * Pipe cleaner brush