From the Wizard of Oz Gift Collection by Westland Giftware, Set of Four Coasters. Made of glass. Measure 4" in diameter. This set of coasters features a terrific variety for any Wizard of Oz fan! Whether your a collector of ruby slippers, the Wicked Witch of the East, Glinda and Dorothy in Munchkinland, or the four friends on the Yellow Brick Road, this set of coasters is sure to please.