The Stanley vacuum pint is great for keeping your drink cold, but sometimes you need some extra protection against splashing. This mug cap plugs into the opening of the mouth for just that. We've also made a new seal for the lid to print in TPU when the original gets old. See more at: Instagram: [@3DBrooklyn](https://www.instagram.com/3dbrooklyn) Facebook: [3D Brooklyn](https://www.facebook.com/3DBROOKLYN/) [3DBrooklyn](https://www.3DBrooklyn.com) 3D Modeling, Laser Cutting and 3D Printing Service in Brooklyn New York. We design useful products from 100% compostable & 100% recyclable plastics.