Name: Portable travel mug Size: cup diameter 8CM; cup bottom diameter 4.5CM; height 7.3CM Material: Silicone Introduction: Portable telescopic cup made of food-grade silicone, non-toxic harmless, healthy and environmental protection, soft silicone will not break, scalable folding space-saving and convenient storage, for a wide range of use whether it is home use or travel will become your good use Helper.