Eco Shapes is a complete range of cases for making beautiful full or hollow porcelain-like castings thanks to a completely new material: the Popsine�. You can melt and remelt this natural material in the microwave as often as you like. So it is cheap and ecological at the same time. It melts at a low temperature (between 56 and 60 � C), does not require any addition of water and the different colors can be mixed to give endless shades.