-Made with eco-friendly natural wheat straw, starch and food-safe PP material. Green and healthy, can be biodegradable,without toxic substance. -Frosted surface texture,smooth edge angle,comfortable, high toughness, scratch and heat resistant. -Elegant and compact design,durable, stackable forconvenient storage. -Tickening design make the mugs unbreakable. -This wheat straw mug used wide mouth design and easy to clean,can be anti-bacteria and anti-dust. -Healthy and natural wheat straw,when you put water into the mug,can smeel the wheat flavor,no damage to your body, without toxic substances.