Expand foundational unit block sets with just the pieces your builders need more of. Made to align with the same mathematical dimensions as traditional unit blocks, these add-on sets are designed to be used as an enhancement to foundational sets.
My kids kept fighting over the four long cylinders in our starter set, so this add-on pack solved that fast. They line up exactly with our existing unit blocks, same proportions, so towers stay stable. Now there are enough to go around and the bickering stopped.
I grabbed these to bulk up our block collection since my kids always fight over the cylinders, and now there's finally enough to go around. They stack and roll just like the ones from our original set, so no wobbling or mismatched sizes. Worth it if your bin keeps running low on round pieces.
My kids kept fighting over the four cylinders in our starter set, so these extra ones fixed that fast. They line up perfectly with the traditional unit blocks we already own, same dimensions and all. Now the tower gets built without anyone crying.