Kelly Radding has captured the fascinating intricacy of the Stimulator Fly on our 4" x 4" drink coasters. With a thin cork backing, they are moisture and heat resistant to 225 degrees. They wipe clean easily and you can count on them to protect your furniture and table linens. Presented in a glossy green gift box, these hard coasters make a thoughtful gift for any host or hostess. Or, go all out and pair them with our coordinating hard placemats and square serving tray, to set a really memorable table.