This didnt work as well as I had hoped. Assembly was easy enough by design. Problem was metal was bent so I had to use some force to fix it. Ok fine once its together. Storage is difficult since it's a bunch of spikes. Kept it in the box when not in use but not taking apart every time.
The spikes need to be slightly curved. When rolling it felt like I was prying out the dirt. This is purely due to the physics.
I ended up using spiked shoes. This product I was not worth the 40$ I spent.