Black & White Flip Flop Attachable Coaster Set 4 Styles 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 Black & White Flip Flop Coasters in 4 assorted Styles Each coaster is approximately 4 1/2" long x 3 1/2" wide and are made of moisture resistant foam and fabric. These unique and fun drink coaster set is packaged in a Sinamay tote for gift giving! Designed to fit most stemware