Aquaflo P.O. Plug 1-1/4 inch x 6 inch ABS (Acrylonitrile Butadiene Styrene) is a rubber drain plug that is a versatile and commonly used tool for sealing drain openings, typically in sinks, bathtubs, pools or other water-based systems. It is made of durable rubber material, which makes it flexible and easy to fit into various drain sizes and shapes. The rubber drain plug is resistant to corrosion and wear, making it suitable for a range of environments.