The dough kit includes 7 containers of conductive dough and 1 container of white insulating dough! Each container holds 7 ounces (a normal, bought container is 5 ounces). The dough does contain gluten, but is safe and non-toxic. The conductive dough does dry out if left out of the container, but the insulating dough does not dry out. Contents: 1 - 7-Ounce Container of White Insulating Dough. 7 - 7-Ounce Containers of Conductive Dough (in Red, Blue, and Green, Yellow, Orange, Purple, and Black).