Fashioned from the sturdy blend of cork and MDF. Crafted to stand the test of time, they are the perfect canvas for your creativity and a wonderful addition to family gatherings, friendly get-togethers, and professional settings. Multifunctional & Protective: Our corked-back, MDF blank coasters safeguard your furniture and desktops against the heat of hot beverages and the chill of cold drinks. Beyond their aesthetic appeal, they prevent scratches, staining, and water rings, maintaining cleanliness and neatness on your surfaces. Optimal Size for Utility: With the dimensions of 4x4 inches and 0.16-inch thickness, these coasters are designed to accommodate all standard cups, mugs, and glasses. Their size ensures ultimate protection of your surfaces from beverage-induced damage. Gifts: Unleash your creativity by infusing your unique designs onto these blank coasters. They make for an incredibly thoughtful gift on Christmas, Birthdays, Weddings, or holidays. Give your loved ones a handcrafted gift that marries style and utility, and truly shows your care. User Note: Each coaster comes with a surface protective film that must be removed prior to use. Customers are advised to understand the temperature and time settings of their transfer paper. While heating, accurate control of temperature and time is crucial. For sublimation, hot transfer paper is required, and cold transfer paper should be directly applied without heating. color:White Material:MDF Package Contents: 12 x Sublimation Coasters