My kids adores this set! They played with every single day, alone and along side the block set.

The kids LOVE this set. I wish I didn’t have to buy hollow blocks separately, though.

The children love playing with this toy.

These are good quality wood rounds and balls. I purchased them to use with my three and four-year-olds, unit blocks are used to support the ramps, Since unit blocks are very unstable and the wood slips off the unit blocks quite easily, its very frustrating for the kids.

Perfect for hands-on learning. Teachers and students love the materials.

I bought this for my block center so students could explore force and motion. These ramps have been a huge hit! This was an excellent purchase

This exploration set is worth the money. The kids in my class LOVE it and use it all the time. The ramps are sturdy. I am so glad there are 3 different size balls. Great for trial and error.

These ramps are amazing! My Pre-K students love experimenting with them. They have already figured out to incorporate unit blocks with them to create jumps and turns. These are a great value. You get a lot for your money. So glad we purchased them!

Although this is a great product for STEM, it's an expensive set that can be achieved with much less costly products. When I purchased this, I thought that it came with other tools to roll, such as cylinders. Not sure why I thought that, but it was a disappointment to not have those items. The balls come in 3 sizes-racket ball, golf ball and large marble and are made of wood.