1. They are rust resistant, non-corrosive so you can use them for years and they will still appear new. Although they look elegant and polished, they do not have any lacquer coating or paint so they dont have no risk of coatings of paint or lacquer coming off during daily use, as is the case for many wooden chopsticks. 2.The healthy fiberglass material, which is a kind of new polymer material, is widely used in kitchen-tool. It is a kind of material with excellent performance, like good insulation, high heat resistance, Light weight and high mechanical strength. It is an ideal material for tableware.