Green Piece 5 Piece Mini Metal and Nylon Tube Pipe Cleaner Brush Set with Keychain Ring Green Piece has made this fantastic product, keeping in mind the use and trouble we face while cleaning several types of equipment that we utilize every day. It is made of Stainless Steel and Nylon bristles and it comes in different sizes that cover most standard sized tubes, pipes and bottles we utilize at home. The 4.5 Inches deep cleaner is exceptionally durable, REUSABLE, and lasts longer than any other products in its category. The five-piece Mini Metal and Nylon Tube Pipe cleaner brush set come with keychain ring that makes it multi-functional. It is great for removing moisture and residue from pipes and accessories. It is also ideal for any application that calls for cleaning out small bores or tight places. The packet includes two sets of brush pipe cleaner. Green Piece is committed to providing the customer with the best source of value possible. You will enjoy the quality, function, and usefulness our 5-Piece Mini Nylon Brush Set has to offer.