Material: Wooden Featured function: parent-child interaction Packing: color box Ability training: emotion, vision, intellectual development, crawling, manual brain, grasping, sensory, hand-eye coordination, other ability training, interactive toys, hearing, parent-child communication, interest training Style A: trumpet playing chess, Style B: extra large playing chess, Style C: 20 pieces of small playing chess, Style D: 2022 football style playing chess