This high-quality mounting ring will complement any vessel sink with a rounded bottom. Measuring 3 inches in diameter by 3/8 inch high, the ring is to be installed between the vessel sink's bottom and the top of the counter. Constructed of solid brass for strength and durability, the ring has a matte black finish. Chrome, brushed nickel or oil rubbed bronze finishes are also available. The benefits of the mounting include added stability and a little extra room to clean under the sink. While not necessary we certainly recommend them! Let your style flow and enjoy Novatto's Limited Lifetime Warranty. Supreme packaging and double boxing ensure damage-free delivery.