[Weight] entities of different materials in accordance with [Materials] Wood Surface paint] [Non-toxic lacquer paint [Packing] beautifully original gift [Description] 1. Improve children's cognitive ability; 2. Foster children's observation and hand-eye coordination; 3. To play a children's imagination, creativity and spatial thinking. Guidance recommends that: 1. Parents pay attention to all sensitive period of early childhood development, timely information, timely training, fully stimulate the intellectual potential of children; 2.0-3 years of age is sensitive to sensory experiences of children, but also sensitive to the details of children, to cultivate children's sensory cognitive ability; 3. Note that children aged 2-6 space sensitive period of development, to stimulate the baby's spatial visualization ability to stimulate the child unlimited imagination.