'What did the limestone say to the geologist?'' ''Don't take me for granite!'' Brighten their day and give 'em a giggle with More Lunch Box Jokes ! Set comes with silly jokes, riddles, and pictures on 60 colorful cards! Fronts of cards are coated. Parents can add personal notes on the uncoated card backs. Lively full-color designs. Vibrant artwork makes every card a delight. 60 different cards! Cards come packaged in a reusable box. Cards have rounded corners for reduced wear. Cards measure 3-1/4'' square.