I was very lucky to have the chance to try this product and I really wanted to like it but basically I couldn't use it properly. This wasn't the product's fault and I think with more effort (and time) I could master it but in all honesty I think it would have been more effort than I was willing to give it. I was able to get the right temperature relatively easily and after a while I managed to get the right amount to roll in my hands (and therefore change colour). Things didn't go to well in terms of the next bit as I couldn't get the timing of the next bit right so it didn't really work. As I say if I put more effort it I could probably make it work but I just wasn't really willing to go any further.