Kids Fort Building Kit, Sticks and Balls, Up to 155 Pieces, Ages 3+
Informations
They Build the Fort, Not You
Each stick plugs into a hole in a ball, and that is the whole technique, so even a three year old can join two pieces on the first try. Line up enough of them and you get a cube, a house with a pointed roof, a tunnel or an igloo. Take it apart and the same pieces become something else the next day. Choose 66, 87 or 155 pieces, with or without a cover to throw over the frame.
Why parents love it
- No tools, no instructions to fight: a stick goes into a ball, that is it.
- A new build every time: house, tunnel, igloo, or whatever they come up with.
- Packs away in its bag: the frame comes apart and the pieces go back in the storage bag.
- Indoors or outdoors: the living room on a rainy day, the yard when the sun is out.
Good to know
- Package contents: 45, 51 or 100 x sticks and 21, 36 or 55 x balls depending on the pack, 1 x building guide, 1 x storage bag, plus 1 x cover with the cover option.
- Dimensions: each stick 12.2 in (31 cm) long, each ball 1.4 in (3.5 cm) across.
- Suggested from 3 years.
- Build on a clear floor and keep an adult nearby, especially when the fort gets taller than your child.
What's in the box
How to play
Safety & care
Delivery & refunds
Delivery
Free worldwide shipping on all orders.
Ships in 1-2 business days (order before 5:00 PM MT).
Tracked delivery in 4-7 business days.
Returns & Refunds
30-day returns. Contact us within 30 days of delivery to arrange your return. Items must be unused and in their original packaging. Return shipping is paid by the customer, with no restocking fees.
Once we receive and inspect your return, your refund is issued to your original payment method within 5 business days.
See our full Shipping Policy and Refund Policy for details.
From the box to the playroom
Parents Also Bought
Why You'll Love Opti Montessori ✨
30-Day Returns
Unused items can come back within 30 days of delivery
- Tracked shipping included
- Carefully packaged with care
- Quality assured every step
Designed Around Montessori Principles ✨
Every Opti Montessori toy is built on hands-on Montessori learning: children explore, focus and grow in confidence at their own pace.
Ready to Start?
Join the families discovering the Opti Montessori difference today.
Not sure it suits your child's age? Read our guide to Montessori toys by age.










