HealthPro Titanium (TI) Super Strong Lightweight Professional Chopsticks with Storage Bag (4) FDA food grade 100% titanium (Ti) Tasteless, odorless, does not corrode, is non-allergenic Same material used by National Aeronautics and Space Administration (NASA) Great for hiking, camping or everyday use, dishwasher safe Excellent weight to tensile strength ratio, only weights 0.2 ounces