The simple double layer shape, with a rounded interior, delineates a comfortable mood, penetrates the body of the cup, and reflects a wonderful time. Choose safe and healthy materials, lead-free, non-toxic, and free of PBA and heavy metal ions. The food grade silicone tea glass is not afraid of bumps and is easy to clean, ensuring the mellow and original taste of the tea. Silicone cup bottom is anti-skid and thermally insulated, effectively reducing damage caused by bumps. A clear 6-character logo reminds you to drink healthy water every day.