6-Inch Plastic Propellers, 30-Pack – Build Rubber Band Powered Planes, Helicopters, and Projects - Mounts onto Craft Sticks or Balsa Wood

Bought to make a school project. They fit perfectly on a popsicle stick. And worked perfect.they are very durable .Will buy again.

I used these propellers to make helicopters with kids. When they didn’t break they worked awesome. I found if you put a lot of tension on the rubber band the propeller would snap between post and hooks holding piece. Also, the fit on a popsicle stick is pretty snug which is great to ensure it stays on but it also has broke on me because I put too much force on the wrong part of the prop. So, as long as it is not overwound and your careful placing on the stick then these are a great deal. The really do work well and made the helicopters fly far. I made 1 rubber band plane and it flew better than a store bought. I would buy these again.

Used these for a scout evening exploring motion. The boys enjoyed building helicopters - results were mixed but research instructable.com for a great video on how to build and best design. The best one flew over 20ft high, found 3 bands worked best!

Good product. Which it came in smaller quantities.

I was pleased with these. Used them in a STEM event at local primary school in the UK - the kids loved them. Younger children will need some time practicing winding them up before launching.

I was a little disappointed these didn't come with the rubber bands to run them.

These worked perfectly with our flying turkey challenge. Easy to use and mounts easily on popsicle stick.

We will build and fly planes in the gym this coming May. Expecting about 25 to 30 builders, ages from 7 to 70. Liked the different blue color. Really liked that the props are already balanced.