Come and see our amazing products. Our filter tea cup/mug made in muti-colors with simple and fashion design. Our material is not plastic, but made by natural corn starch, and environmental protection material, and does not contain bisphenol A, heavy metal, oil composition. Biodegradable, non-toxic safety and green. Resistance to high temperature 212'F, low temperature -68'F, applicable to microwave. Don't think twice, it's quality what matters." Pls confirm with us about the packing info, stock color and exact production time before placing your order.