This Kitchen Sink Is Made Of 18 Gauge SUS304 Stainless Steel, Which Is Sturdy And Durable. The Unique 10mm Inner Radius Fillet Is Easy To Clean. The X-shaped Design Of The Drain Tank Improves The Drainage Efficiency And Does Not Accumulate Water And Keeps The Gutter Mouth Dry. Abrasion-resistant Brushed Surface Is Scratch-resistant. The Bottom Grille Effectively Extends The Life Of The Sink.