8 Reuseable Silicone Suction Lid Cup Mug Food Storage Covers Airtight Seal This set contains 8 cup size covers (12 cm/4.5 inch) Perfect for cup, mug, small bowl Convenient reuseable food storage kitchen utensil - keep beverages warm, store leftovers easily High quality food grade silicone can be used in temperatures from 30-230 degrees F Reusable, use often and eliminate the waste and inconvenience of plastic wrap and aluminum foil Safe for dishwasher, oven, freezer, microwave - Buy now and join other customers helping to protect our environment