When you're done blowing out your candles and finishing off your cake, don't forget to send your party guests one of these Bubble Guppies Postcard Thank Yous. Each Bubble Guppies-themed card features a fun design of one of the show's characters. The perfect addition to your Bubble Guppies-themed party supplies! Includes 8 thank you cards, 8 envelopes and 8 seals. 4 1/4" x 6 1/4" Paper. (8 pcs. per unit). © 2014 Viacom International Inc.