The clay was too wet. I had bought the Discovery store versions in 2005 and 2008 and this appeared to be the same but was not. I noticed the clay was stuck to the foil pack but it felt fine when kneading. Then when I started to roll it the roller stuck to the clay. So then after finding another roller and getting it ready, I tried to imprint my baby's foot. What a mess!!!! It was all over her foot. So I re-formed it and let it dry and it kinda worked but defiantly not well. Had it not been the precedent of the previous 2 frames for the older kids, I would have returned it.