The DIY Object Permanence Box Kit contains everything you need to create a classic Montessori material for babies from approximately 6 months onwards. Complete with a pre-cut box, two wooden balls, and step-by-step video tutorials, it supports object permanence, hand-eye coordination, concentration, and early cause-and-effect learning through purposeful repetition.
One day your baby drops the ball into the box.
They pause.
They wait.
Then they look for it.
That simple moment marks an important step in development. Around six months, babies begin discovering that objects continue to exist even when they disappear from sight. The Montessori Object Permanence Box gives them repeated opportunities to explore this new understanding through movement, observation, and repetition.
Each time the ball disappears and rolls back into view, babies strengthen their understanding of object permanence while refining hand-eye coordination, concentration, and purposeful movement. Assembling the material yourself allows you to become part of that learning journey from the very beginning.
Recommended Age
Suitable from approximately 6 months onwards.
Many babies begin showing readiness once they can sit with support and intentionally grasp and release objects.
As coordination develops, the Object Permanence Box continues to offer opportunities for repetition, concentration, and independent exploration.
Why Montessori families choose the Object Permanence Box
The Object Permanence Box is one of the classic Montessori infant materials because it allows babies to learn through experience rather than instruction.
It can support:
- object permanence
- hand-eye coordination
- concentration
- cause-and-effect understanding
- grasping and releasing skills
- independent exploration
- early problem-solving
Its simple design helps babies focus on the activity itself without unnecessary distractions.
Designed for repeated discovery
The kit includes two different balls, each offering a slightly different experience.
The smooth wooden ball provides weight and precision, while the crocheted ball introduces texture and a different tactile experience.
Together they encourage babies to repeat the activity again and again, refining both movement and understanding through practice.
What’s Included in the DIY Object Permanence Box Kit?
- Pre-drawn cardboard box (10 × 10 cm)
- Wooden ball (3.5 cm)
- Crocheted ball (4 cm)
- Step-by-step video tutorial
📌 Simple assembly required.
A meaningful Montessori project and gift
Many parents prepare the DIY Object Permanence Box Kit just before their baby is ready for the next stage of exploration.
The finished material becomes part of everyday discovery while also carrying the value of having been prepared specifically for your child.
Perfect for:
- babies from 6 months onwards
- Montessori families
- first-time parents
- baby shower gifts
- grandparents looking for a meaningful gift
- parents creating a Montessori-inspired play space
Looking for the next step?
Many families introduce a Posting Box or Coin Box after the Object Permanence Box, building on the same skills of coordination, concentration, and independent problem-solving.
For a different type of hands-on exploration, you may also enjoy the DIY Sensory Bean Bags Kit.
For more information about object permanence and why this material is so important, take a look at the accompanying blog article.
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