- Durable and premium plastic construction ensures long-lasting performance. The flexible, expandable corrugated design allows for easy adjustments to fit various shapes and plumbing configurations. - Tackle plumbing challenges with ease: This adjustable bathroom sink drain extension pipe effectively resolves offset connections and tricky plumbing issues. The top connection diameter is 1-1/4" (32mm) to attach to a tailpiece, while the bottom outlet also measures 1-1/4" (31mm). Please verify dimensions prior to installation. - Versatile design: The flexible corrugated pipe can be effortlessly bent into "U," "S," or other shapes, extending up to a maximum length of 35-1/4" (895mm) when fully expanded and compressing to 17-1/2" (445mm). - Reliable construction: Constructed from thick, robust plastic with reinforced steel wires, this product is rustproof and corrosion-resistant, ensuring strength and reliability without the risk of splitting. - Innovative backflow prevention: The inner small plate automatically opens during drainage and seals shut afterwards, effectively blocking backflow. A black rubber washer enhances the seal at connections, further reducing odors. - Suitable for various scenarios, such as residential bathroom sink installations, renovations requiring offset adjustments, or repairs to existing plumbing systems, this drain extension pipe is an essential tool for homeowners and professionals alike.