"When I got these, the coils were all stuck together. When I tried to separate them (turn them into a slinky) it was incredibly difficult and I was concerned the plastic would snap under the force. So I left that task up to the kids parents. I did separate my daughters and it did not break but I was disappointed."
"These ary pritty cool. My only complant was that they did not work too well on the coloring place mat, as well I snaped one when coloring. The kids loved them though and thats what matters."