This colorful building block toy has 6 circles of different colors and sizes, which is very cute.Easy to handle, stack Beautiful colors, easy to maintain, light enough to allow the child to use it easily. Ill allows him to discover, to think To advise Suitable for fine motor skills and concentration. Baby builds up his little hands as he tries to grasp and interact with the rings and strengthens his dexterity and hand-eye coordination That's perfect for learning colors, numbers and touch (different sensation on each circle) and then learn to stack! A really complete sensory stimulation player, very useful for periods of awakening BPA free. Fully washable blocks. Your child will be able to chew them safely Multiple elements and colorful colors help the development of different senses Vision: Color + Numbers + Geometry + Letters + Graphics Tactility: Different textures, reliefs, tactile sensations When you hold the building blocks, the airflow through the small holes emits a tonal exhalation sound to attract the baby's attention< /p>