Pusheen and Stormy together in one box set! The Pusheen the Cat and Stormy the Cat Mug Set includes two 12-ounce mugs in gift packaging. Made of durable stoneware, each measures approximately 3 7/8-inches tall x 3 1/4-inches in diameter. One adorable mug spotlights Pusheen and the other, her sister! Hand wash only. Not dishwasher safe. Do not microwave.