Offered here is a set of glass coasters. As you see here, they are etched with palm trees and are a set of four. They measure 3 ½ inches by 3 ½ inches square. They have little rounded stoppers on the bottom so they wont make contact with where they are set down. The little bumps feel like plastic and seem to be glued on. The set is used but none of them have any damage on them-no chips, dents, or cracks. They are a very pale green in color.