Sublimation Coasters Blanks Set: You will receive 24 pieces of MDF Cork Back Heat Transfer Cup Coasters measuring approximately 3.9 x 3.9 x 0.16 inches/10 x 10 x 0.4 cm, enough quantity for your daily use and replacement. Great Quality: Sublimation square coaster blanks made from sturdy MDF with non-slip cork backing, these coasters resist deformation, falls, and are waterproof. They offer excellent insulation and clear, vivid heat transfer patterns. Customised Photo: Heat Transfer Cup Coaster allows you to choose your favourite photos, and with some simple techniques and crafts, you can get unique handmade crafts and decorations. Place them at home and add a bright scenery to your cosy home. How to Use: Peel off the protective film from the sublimation square coaster blank, then use heat transfer tape to attach the image. Heat at 355-375℉/180-190℃ for 60-70 seconds,use heat sublimation paper for best results. Ideal Crafts: Wood hardboard coasters are ideal for teacups, wine glasses, coffee mugs, and more. Customize with memorable photos for personalized gifts or decorations for any occasion such as weddings, birthdays, and graduation, Christmas. Colour:White Material:MDF Package Contents: 24 * Coasters Blanks Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.