The PRISP dice are an educational tool that helps teach children all kinds of skills and abilities. They are made of soft, squeezable foam, which makes them suitable for all ages and a great sensory device that works on touch and vision, stimulated by the dice's vibrant, multiple colors. These colors are also incredibly useful when using the dice to teach numbers, counting, color sorting, and more, and will facilitate the learning process. Additionally, the rounded, soft edges of the dice are specifically designed to make them safe for an injury-free learning experience or game because otherwise, sharper corners can be dangerous. You can use these dice to play, learn, and have a good time. This set is sold in 6 different colored dices, 3.15 in.