This three shape puzzle is an excellent, high-quality material consisting of a square, circle, and triangle on a wooden board. | It is a great hands-on learning toy for preschool classroom or home. | This montessori toy is designed for toddler who develop gross motor skills and hand-eye coordination. | 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". | Through observation, cultivate children's concentration; analyze the difference of objects, exercise thinking ability. | Sensory aids for 0 to 3 years old can exercise children's hand-eye coordination through simple movements.Excellent homeschool or classroom early educational material.

The Object Permanence Box with Tray contains a wooden box with tray and three wooden balls(red, yellow, blue） | The montessori materials encourages curiosity from child's early age and sends brain signals that a goal was achieved. | The Object Permanence Box with Tray is great material for developing hand-to-eye coordination and basic logic skills in babies and toddlers. | 3 ball; ball size: 1.77in Hole Size: 2 in