The vacuum insulated bottle stopper is a versatile accessory that your thermal bottle remains leak-proof. To use, simply insert the water bottle stopper cap into the bottle's mouth and twist to lock it in place. This thermal bottle seal cap is designed to maintain the temperature of your beverages while preventing spills. It's an excellent addition to any water bottle, providing peace of mind and convenience. Features -Color:Multi -Material:Silicone -Size:4.50X4.50X4.50cm/1.77X1.77X1.77in -Leakproof design: the leakproof lid plugs provide a , preventing any liquid from leaking and ensuring safety from burns and spills. -Efficient and easy: the vacuum insulated bottle stopper makes filling your thermal bottle quick and convenient, saving you compared to traditional methods. -Adaptable and practical: great for home, office, and travel, these vacuum bottle stoppers cater to various environments and user needs. - and reliable: constructed from sturdy materials, the water bottle stopper cap is built to last and resistant to wear and tear, offering longterm performance. -Multiuse compatibility: the thermal bottle seal cap fits different types of bottles, including thermal and oil bottles, making it a versatile and useful accessory Package list: 2 x bottle lid