Flippers Swim Fin Attachable Coaster Set-4 Asst Colors Allow your guests to distinguish their glass in style with these unique and fun attachable coasters for the foot of their glass! Set of four Flippers Swim Fin Flop Coasters in 4 assorted colors Made of moisture resistant foam rubber material These unique and fun drink coaster sets are packaged in a clear PVC pouch that fit over the neck of a bottle for gift giving! Designed to fit most stemware