VFMKT Math Formula Ceramic Coffee Mug 11oz Heat Sensitive Magic Coffee Mug Color Changing Coffee Cup Tea Cup for Women Men

High-grade material: This funny color changing mug is made of ceramic,sturdy structure,good heat resistance,health and safety,good heat resistance to prevent your hands from being burned Standard size to hold: The size is 3.7 inch x 3.1 inch, volume is 11oz(320ml), safe for microswave, not safe for dishwasher, hand wash only. Do not scrape the printing with sharp or hard tools. Not suitable for long-term exposure to the sun User-friendly design: The mug is ergonomically designed for a comfortable grip, preventing accidental slipping or spilling. Its large handle ensures ease of use, whether you're at home or in the office Unique printing: This color changing mug has a unique printing pattern,each mug has its own unique pattern,making each mug unique,it can be used to hold any favorite beverage,which can definitely meet your office and family needs Great present: It can be as a gift mug for family, friends, coffee lovers, a great present for birthday, christmas, new year and other holidays. Each time he/she use the cup, he/she will think of you. What a cool, novelty and brilliant present ! And it will be fun to be able to see how full it is from the outside