The Sure Grip Mug, ergonomically designed for easy handling, offers long-lasting quality and performance. Choose between a small aperture lid for fluids or a large one for semi-solids, ensuring perfect control when drinking in a reclined position. Our user-friendly mug features a valve that creates a vacuum, allowing for a more manageable drinking experience. Easily maintainable, this dishwasher-safe mug is built to last, providing you with convenience for years to come.