These multifunctional tools can clean the inner and outer surfaces of joints and pipes Durable material: copper pipe cleaner brush is made of high quality material, which has high corrosion resistance and rust resistance, and has high strength, durability, long service life, and can clean metal parts 4 In 1 pipe brush clean design: 4 in 1 thread cleaner brush allows for comprehensive inside and outside cleaning of all pipes, the washable range is the most common size: 1/2 inch, 5/8 inch, 3/4 inch and 7/8 inch tubes Comfortable grip design: the handle provides users with a handle to prevent slippage and is comfortable to use, which can be applied for a long time and saves the 's workload Wide range of uses: brush cleaner tool can clean steel parts, machinery, unprocessed metal parts, paint stains without damaging the surface or characteristics, cleaning, polishing and rust removal, welding tools are easy to brighten the pipeline again colour:Yellow Material:Polystyrene + stainless steel bristles Package Contents: 4 x Copper tubing brushes Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.