... , oil seal,water seal and rubber gaskets ect.Specificationssilicone cup lid1. silicone coffee cup lid for keep fresh2. size; dia.9.5cm and H ... grade silicone material2.It can be used as glass lid,coffee cup lid,water cup lid,mug lid,drinking cup etc3.Nontoxic and odorless,unbreakable and durable4.Various ...