The chopsticks are made of food-grade 316 (18/10) stainless steel. The 316 stainless steel is healthy material widely used on flatware. The best choice for safe and durable reusable chopsticks. The metal chopsticks are with permanent laser-engraved pattern. No fading after long time use. Every family member can have his own personal reusable chopsticks. No worry about mixing use. It's more healthy and sanitary. This metal chopsticks are with anti-slip tip and square body. The reinforced laser etching on the stainless steel chopsticks tip makes the metal chopsticks easier to grab food and better anti-slip. The metal chopsticks with the square body are easier to use and more comfortable when holding on hand. The square chopsticks won't roll on the hand. The 316 stainless steel chopsticks are with mirror shiny surface. They won't hide the dirt. The reason why the wooden/bamboo chopsticks get moldy easily is due to their loose construction. There are thousands of tiny holes that gain food residue and liquid during use. It is very hard to get rid of them during the normal cleaning process. Metal chopsticks with solid construction are free from that trouble. That is why the metal reusable chopsticks are healthier. This metal stainless steel chopsticks are dishwasher safe. Easy to clean and no special maintenance required. Reusable chopsticks that no worry of damage during use or cleaning. The metal reusable chopsticks stand all the temperature torment when cooking, clearing, and normal using.