... rubber seals, rubber band, oil seal,water seal and rubber gaskets ect.Specificationssilicone cup lid1. silicone coffee cup lid for keep fresh2. size; dia ... % food grade silicone material2.It can be used as glass lid,coffee cup lid,water cup lid,mug lid,drinking cup etc3.Nontoxic and ... :Red,Green,Pink,Transparent,White etc5.This silicone cup lid can protect your water or drinking from dust and dirt6.We ...