Delinx 60PCS Plastic Project Wheels with 2 mm Hole and 30 PCs Shaft Rods,100 mm Round Rod Axles for Science Engineering Car STEM Projects RC Truck Boat Helicopter Model

These were the perfect project wheel for my four year olds to create their own moving vehicles. Being able to pick out your favorite color wheel was a plus as well. The axle fit well into the wheels and allowed wheel rotation.

Wish they came in different sizes and also a little less center "mass". They worked as expected.

Useless product. Flimsy wheels with super long axels.

My 3rd graders have loved having these wheels in the maker space at our school library. There is a good variety of wheels and they can use them to make all sorts of creations. They especially love putting together little vehicles using recycled cardboard and plastic. They are a good weight and have all seemed to turn well.

the circumference is 100

An excellent addition for my young students to explore in our STEAM learning center. Easy for my students to make vehicles and other things that move. Sparks creativity and imagination.