3dRose cst_163849_2 Keep Calm and Birthday On. Happy Birthday. Pink and Yellow-Soft Coasters, Set of 8 Dimensions (in inches): 3.5 H x 3.5 W x 1/4 d Comes in a set of 8 - same image on all coasters Washable - to prevent image from fading clean with mild detergent using cool water Absorbs moisture Made of recycled rubber