Come and see our amazing products. Spiral design of the cup mouth to prevent the straw from slipping. The plastic material is corrosion-resistant, and the food-grade plastic straw is safe to use with a small-diameter straw mouth, which is easier to insert. Mirror light treatment can increase the anti-skid function, no residue, easy to clean. When boiling hot o water, pour it into a cup, the cup body will not be hot immediately, but will gradually become warm and not hot to the hand. Pls confirm with us about the packing info, stock color and exact production time before placing your order.