🏠Standard 1-3/4" drain opening: fits sink hole diameter 1-5/8" to 2-5/16". max sink thickness 2". 🏠Ideal for any above-counter vessel sink without an overflow hole. 🏠Guaranteed 50,000 smooth bounce times. 🏠The sturdy brass metal structure ensures corrosion resistance, rust prevention, and maximum durability. 🏠Four layers of superior finishes surpass industry durability standards, will not fade over time. 🏠Easy to install: drain, thin rubber washer, thick rubber washer, hard washer, drain nut, the tail piece are all included. please follow the installation guide to ensure no leak. 🏠Limited lifetime warranty for all mechanical parts, 5 years warranty for finishes.