3 years & up. Use these Hard Plastic Bright Colored Sorting and Mixing Bowls for Manipulatives and More for different color recognition activities. Children will enjoy sorting materials by color, texture, shape, size, and more. For a fun activity, encourage children to sort the items into the bowl that match the color. These bowls can also be used in sand and water tables, and during arts and crafts to mix materials. Measures 6"D x 1"H.