Kraus Copper Illusion Glass Vessel Sink. Glass sink is constructed from solid tempered glass and features a smooth interior with textured exterior. Designed for above counter installation with standard US plumbing connections. The bowl features various shimmering shades of copper, brown, and black that are fused together in a one-of-a-kind design. Certified and Listed by UPC, cUPC, CSA, IAPMO, ANSI and SCC, comes with a Limited Lifetime Warranty.