SimplyCopper 15” elegant round bowl design, created of heavy 18-gauge copper which is hand-hammered to provide a rustic antiqued look. Each piece is hand made by skilled artisans who take pride in their work. Each sink is truly a work of art. This copper sink can be used as either a drop- in or an under mount. Specs Shape: Round Outside Dimensions: 15 x 5-1/2" D Inside Dimensions: 13" x 5-1/2" D Edge (Lip): 1" Flat Drain Opening: 1-1/2" { Non-Overflow } Drain Sold Separately Design: Hand-Hammered Surface Naturally Antimicrobial Gauge: Heavy 18 Material: Copper Finish: Aged Copper Overflow: No Easy to maintain-soap water Installation Type: Drop-In or Under-Mount Warranty: Limited Lifetime Included: (1) Copper Sink (1) Drain Installation Instructions Copper Sink Care Warranty Information Please Note: Each sink is handmade by Skilled Artisans. Our sinks are unique and one of a kind. You will use the sink as your template as dimensions can vary slightly due to the handmade nature. Variations in the patina are normal and not considered to be a defect. We recommend a professional for installation. Use only mild soap and water with a soft cloth for cleaning