These used to be sold as COPCO melamine utensils. Now, they are sold under various sellers names. Bottom line, since these are melamine, they can easily be refinished when they become dull. An ordinary cosmetic emery board nail file will smooth any chips in the spatulas. Since they are not nylon, they can withstand heats that would melt nylon. And since the contain no metal, they are safe to use on PTFE (Teflon) or ceramic coated pans. Only one warning: they are not indestructible. Unlike metal or metal reinforced nylon, they can be broken from too much force. Any stains from tomato products can easily be removed with some chlorine cleanser and a Scotch-Brite pad, or soaking overnight in water with a little laundry bleach added. I purchased these years ago from Wayfair, and I still have the complete set, unbroken. Care for them, and they will become your favorites.