Materials: Plastic Sizes: 1/2, 3/4, 1in 6PCS Steel Brushes: 8/10/12/15/17/19MM 1. It can help you clean your copper pipes at home, allowing water to flow more smoothly and ensuring a more stable water flow. It is not only suitable for kitchen and bathroom pipes, but also for your central heating system. 2. It can clean your copper pipes faster and more thoroughly. It can quickly remove deposits and dirt inside the pipes, making your pipes look like new. 3. It is a very safe cleaner that will not damage your pipes or the environment. It is also easy to use, and you don't need any professional skills to clean your copper pipes at home. 4. Made from recyclable materials, it means that after use, you can put them into the recycling bin. This greenhouse approach helps to maintain the beauty of our environment. 5. The price is very reasonable compared to other pipe cleaners on the market. In addition, only a small amount of cleaner is needed to easily clean your pipes, which saves you more money. Package includes: 1 set * Copper Pipe Cleaner.