Specification: Scientific design allows baby's color perception to be divided into 3 stages. The first stage: to train childrens ability of understanding and identifying color. Second stage: to cultivate kids feeling about the color and cultivate keen observation and the initial formation of aesthetic concepts. The third stage: to develop childrens visual ability to differentiate the gradual color and establish the initial aesthetic concept of art through the color depth, shades of change. Type: Color Card Wood Toy Material: Wood Suitable Age: 3-6 Years Old Color Card Size: 6.8cm x 3.7cm/2.68" x 1.46" (Approx.) Small Size: 8.7cm x 8.7cm x 4.6cm/3.43" x 3.43" x 1.81" (Approx.) Medium Size: 23cm x 8.7cm x 4.6cm/9.06" x 3.43" x 1.81" (Approx.) Large Size: 23cm x 23cm x 4.6cm/9.06" x 9.06" x 1.81" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Included: 1 Set of Color Card Wood Toy #Learningtoy #Montessori #Developmenttoy #Domino #Woodentoy #Sensory #Babykid #Codecard #Preschool #Kids