“I bought it to challenge an 11 year old child who is very smart and loves to assemble/ build things. This did serve as a brief challenge, so it was a big hit. Now she continues to come up with alternative models with the same materials, just modified.”
“My son received this as a gift. The pieces are almost impossible to get together and take apart. I felt like the axle pieces were going to break from the force I had to use to get pieces on it. Once they were on the axle, I couldnt move them or get them off. We didn't even finish ONE project before my son lost interest and went back to his Legos. Waste of money!!”