Silicone Cup Cover with Straw Hole Spill-Resistant! Safe Even If Tipped Over Prevents Dust and Splashes from Entering Ideal for Assisting Elderly Individuals, During Caregiving, and When Feeding Young Children. Will be shipped in an envelope via Click Post. Thank you for viewing! This is a silicone cup cover that prevents spills simply by placing it over a cup. ・Features a valve that prevents spills even if the cup is turned upside down with a straw inserted. ・Also prevents dust and splashes from entering. ・Complies with Food Sanitation Law. Size (approx.): Φ70 x 45mm Material: Silicone rubber Notes: Cold/Heat Resistance: 160°C. Not dishwasher safe. Not suitable for dish dryers. Not microwave safe. Not oven safe. Not for direct fire/IH. ・Suitable for cup diameters of approximately 7-8cm. ・Commercially available straws (with a diameter of approximately 7mm or less) can be used.