1. Made of Brass to ensure strength and longevity, durable and non-corrosion. 2. The filter design prevents hair from entering the sewage pipe and clogging the sewage pipe. 3. This anti-blocking floor drain is suitable for outdoor drainage pipes, exhaust pipes, roofs, balconies and other floors，A great little tool for your home. 4. This floor drain is a great tool for full protection in a fresh environment and easy to remove, perfect for your balcony. 5. We care about the feelings of our customers very much, if you have any questions, please contact us in time, we will reply you within 24 hours, I wish you a happy shopping!