This large foam dominoes set is perfect for introducing numbers, patterning, counting, and probability concepts, as well as providing hours of fun! They are made of soft, quiet ManipuLite foam so no need to worry about the noise. This double-six set contains 28 dominoes. Each domino measures 5 1/4" x 2 1/2" and features colored dots. These Montessori math manipulatives are a must-have for your classroom or your students back-to-school supplies list! For over 50 years, hand2mind has encouraged hands-on learning and discovery, driving deeper understanding and helping children unlock their full potential. Hand2mind specializes in math manipulatives designed to help students learn by doing. From early math to middle school math, hand2mind has you covered with products designed to enhance learning in the classroom and the world around us. Through hands-on exploration and discovery, we strive to find new ways to encourage students in math practice, literacy activities, STEM education and more!