High-end grade. According to the inquiry of happycall in official website, HAPPYCALL belongs to the first-line non-stick pan brand and is well known to the public. HAPPYCALL non-stick pan won one of the top ten brands of the year and was recognized by the industry with its good quality and cost performance. Non-stick pan is a pan that does not stick to the bottom of the pan when cooking. The bottom of the pot is coated with a non-stick coating. Teflon coating and ceramic coating are the best non-stick properties.