This trap has a revolutionary design to increase the flow velocity as well as reduce blockage or clogs. Saves money by eliminating expensive drain cleaning, as well as being environmentally friendly, reducing the need for harmful chemicals. The trap is made of a transparent Clear plastic ABS for fast trouble shooting. It's self-cleaning with just an easy turn of the paddle. Fits easily into new or existing plumbing. The hottest product in the plumbing industry to date!