Maison Maxx Eco Friendly Healthy Wheat Straw Plastic Tumbler, Mug, Cup for Water, Coffee, Milk, Juice, Tea (1pcs, fl.13.5oz, Blue) SAFE ECO-FRIENDLY MATERIAL -- Natural Wheat Straw; You can see the scraps of wheat straw scatter on the surface and even smile it. LIGHTWEIGHT -- Totally renewable, degradable and food-safe, no heavy metal; Dishwasher, microwave, fridge and freezer safe. CUP HANDLE DESIGN -- Ergonomic thumb groove on the handle designed to provide comfortable grip and anti-slip. DURATION -- 180 heat resistant, safe,durable and shatterproof. MORE USEFUL -- It is very convenient to use for cups , coffee , tea, Water, milk, Juice, soda and more. It also can be a gargle cup or toothbrush holder.