Tetris Balance Toy Montessori Toys for Toddlers Balance Stacking Toy can train children's attention, thinking ability, logic, and practical ability. Product specifications: Material: ABS material, Color: blocks (red, yellow, blue, green), Packaging: color box. Package includes: 1 * Balance board, 1 * base, 48 * blocks, 22 * cards. Suitable for children over 3 years old to play, children under 3 years old need to be accompanied by an adult to play.