Easy to install: Quick and tool-free installation of the sink drain assembly, including all necessary gaskets, seals and mounting nuts. Please make sure the gasket is in the correct position to avoid leakage. (No need for plumber’s putty and tape) Easy to clean: The vessel pop up sink drain screwable top of the plug is convenient for snakes and cleaning.You can easily pull it out in the popped state. The strong ABS structure prevents rust. Easy to operate: the bathroom sink drain spring-loaded button can be switched with a light push. Just push the drain cover down to close and seal it, then push it again to open and drain. Exquisite finish: The black finish that pops up the drainage industry's leading, can resist daily scratches and prevent corrosion and rust. Standard 1 3/4" drain: Suitable for sink holes from 1.6 inches to 1.9 inches in diameter. The maximum sink thickness is 1.97 inches. Ideal for any above-counter vessel sink with overflow.