Durable Non-Porous Scratch Resistant Ceramic: Developed from ceramic, that is scratch-resistant and non-porous, providing a durable and reliable option that can withstand routine use. Single Faucet Hole: Pre-drilled standard 1 3/8” Single Faucet Hole. Overflow: Equipped with an overflow that offers easy installation, spill prevention, and space-saving properties. Front towel bar: Adding convenience and functionality to your sink with a towel bar. Basin Depth: 4.13 Inches.