This is a multiple-shape sorter box. You can put the corresponding shape and lid according to the level of the child. For any Montessori classroom and home school, this is a good tool for general sensory teaching. This material develops hand-eye coordination and indirectly allows the child to experience object permanence. It practises precise hand movements while sending information to the brain as well as develops hand, wrist and finger control - also known as "refined hand movements". Handmade with love by Numobel in INDIA