Material and Size: Made from rubber, the pillow case is available in blue color and measures 7448cm/2919In with a packing size of 45301cm/17.711.80.4In, weighing 300g/0.66lb both net and gross.Versatile Sleeping Support: Designed to accommodate various sleeping positions, the pillow features an irregular bilateral high and low design that supports natural posture, reduces pressure, and minimizes the risk of neck stiffness for side, back, and stomach sleepers.Comprehensive Gel Coverage: The pillow offers a 360 all-round gel coverage with a gel thickness of 0.6CM, resembling dark blue gemstones, ensuring cooling effects not just on the front but also on the sides for shoulder comfort.Easy Care and Maintenance: The pillow case comes with an easy-zip stretch-knit cover that is removable, machine washable, and dryable, making it simple to maintain and conserve the pillow's freshness and cleanliness.Advanced Technology Pillowcase: The pillowcase utilizes ultra-thin technology fabric that enhances the cooling effect of the gel, allowing the coolness to be effectively transferred to the user's body, providing a cooler sleep experience throughout the night.