These adorable Rubber Ducky Bubbles Writable Bingo Cards are perfect addition to any baby shower or birthday party. Simply hand these cards to your guests, along with fine tip Sharpie pens, as well as bingo marker cards (The markers will need to be cut prior to the event or you will need to provide your guests with scissors to cut up the markers). You will also need to purchase a call out card as well. Then simply call out the words on the call out card and allow your guests to write in the words on the spaces they choose. Then cut up the call out card, fold and place in a hat for the pull out strips. Simple as that! These are printed at a 4.25" x 5.6" size on glossy ultra heavyweight 120 lb. cover stock (card stock). We have an entire line devoted to this design here at zazzle store under the * Design Collections menu tab to include invitations (5x7), Return Labels, Mailing Labels, Envelope Seals, Postage Stamps, Cup Cake Picks, Water Bottle Wrappers, Hershey's 1.55 oz. Large Bar Wrappers, Hershey's Miniature Stickers, Microwave Popcorn Bag Wrappers, Writable Place Cards, Goody Bag Toppers, FLAT Thank You Cards (4x5), FOLDED Thank You Cards (4x5), Favor Tags, Menu Cards, Mint Matchbooks, Lollipop Covers, Bookmarks, Bingo Cards, Bingo Card Markers, Bingo Card Call Out Sheets, Writable Advice cards (4x5), etc.