Configuration:Hidden Rim Seamlessly formed of #18 gauge nickel bearing stainless steel. Exposed surfaces are hand blended to a lustrous satin finish Underside is fully coated to prevent condensation and deaden sound Designed to accept a waste disposer Drain Opening: 3' Bowl Depth: 9' All Elkay undermount sinks are designed to affix easily to the underside of any solid surface countertop. Template and countertop mounting clips are packed with every sink.