Eco friendly material: wheat straw, starch, water and so on. It's healthy and environmental, no damage to your body. It is biodegradable. Size: the mug size is 13.5 oz and it is heat resistant up to 120 C.Lightweight and durable during use. Natural environmental production, bringing you the enjoyment of health and a smooth handle. Creative design, very ergonomic with a thumb rest, easy to hold and unbreakable. The handle is situated at an angle, the mug is dustproof and germ-proof. Product description Color: Pink and Blue Uses: drinks, juices, water, sodas or other uses. Product details: Material: natural wheat straw + starch + 50% food-grade polypropylene. Eco friendly and healthy material, without toxic substances, biodegradable. Bamboo shape design, easy to handle and anti-slip. Lightweight and durable in use. The mug can be stacked to save space. Anti-slip bottom, the mug is thickened so it doesn't scald. It is BPA (Bisphenol A) -free and safe to use in dishwasher, microwave, fridge and freezer Heat resistance up to 120 C. Why choose our store tableware set? Natural grain does not contain heavy metals or any other harmful substances, degradable, environmentally friendly and non-toxic. 2. High density surface process, no slits.