2 Packs of Aquaterior oval shape glass sink features transparent gray and sleek line design Tempered glass with smooth surface for not easy to leave stains and convenient to clean and maintain 21 5/8' length large size basin is perfect for large counter, can prevent water from spilling out easily Just drill a suitable hole on the countertop to install, without replacing the vanity We offer 1-year warranty and CUPC certification for quality assurance and online customer service for installation