The Happycall New Series cookware features a power-intensive Diamond DNC coating that enhances durability and strength, providing four times the heat conductivity of most cookware. Diamond crystals embedded in the coating, certified by labs in Korea, the USA, and China, deliver exceptional hardness, strength, and thermal conductivity—five times that of copper and 140 times that of stainless steel. The body is crafted using advanced nanotechnology and a 2,500-ton special forging process. Its ceramic non-stick exterior is hard, durable, and relatively easy to clean, while being 100% food-safe and PFOA-free. Compatible with all heat sources including induction, gas, electric, ceramic, and halogen, this premium-quality cookware is made in Korea.