Cardboard Craft Rolls - Set of 24

I grabbed these for a homemade marble run and the kids loved how easy they were to cut and tape together. The sturdy cardboard held up way better than I expected through multiple design tweaks. We'll definitely be using the rest for classroom STEM challenges.

My third graders used these for a bridge-building challenge and they held up much better than the flimsy paper towel tubes we tried before. The sturdy cardboard is thick enough to cut cleanly with scissors, which saved so much prep time.

My kindergarteners loved using these sturdy rolls for a tower-building STEM challenge, and they held up perfectly even after being glued and painted. The set of 24 was more than enough for our whole class.