The American Standard Rondalyn Self-Rimming Drop-in Bathroom Sink and Countertop in Bone, with its classic round shape, is designed to fit standard 19 in. sink cut-outs for easy replacement. A cut-out template is included to make installation easy. The vitreous china construction is crafted for durability, is resistant to most types of stains and is easy to keep clean. Its tapered edges are stylish and complement most types of bathroom decorating schemes.