Sculpey Premo Polymer Clay is an artist’s dream come true. After conditioning Sculpey Premo Polymer Clay it is soft enough to blend easily but firm enough to hold fine detail and for specialized techniques like caning, mokume gane and mica shift. Because Sculpey Premo Polymer Clay retains flexibility, the finished product remains very strong and durable. Great for a variety of projects such as jewellery, DIY home decor, mixed media and more. Best brand for mica shift technique due to the high concentration of mica particles. Stays soft until baked. Does not air dry. Remains soft until it is baked in your home oven. Extra clay can be stored and reused - if stored correctly it won't dry out. Safe and non-toxic.