For personalized coasters - please submit a high quality photo, square size is best, but if not weβll do our best to crop it. Each coaster has a hardboard underside, protecting the surface underneath. -Glossy Finish-Size: 3.9 3.9β approx To ensure a long shelf life, please do not submerge in water, a simple wipe down will keep your coasters nice and clean. A great, high res image will give the best results. If you submit a lower res photo, please keep in mind that this will reflect on the final product. PLEASE NOTE:After you submit your artwork, changes ππππππ be made.****We do NOT add text, remove text, change text, change colors, change images, edit images, etc. When you click complete it, it moves to production and we aren't able to stop it at that point.Production time does not start until AFTER we have received the personalization of your tile.