Made from renewable and reclaimed materials, natural wheat straw/starch/food-grade PP.Cup can be stacked and save space,Break and chip resistance for carefree durability, with smooth rim, suitable for water, drinking and fruit juice.When you put water into the mug, you can smell the wheat flavor,but don't worry, it's healthy and no damage to body.No heavy metal,BPA free food-safe grade and dishwasher, microwave, fridge and freezer safe.New biodegradable material, which will self decompose in the soil.The 5-color health water cup is designed to be both beautiful and comfortable, and the excellent color will not be lost or faded.