YALEY- Resin Jewelry Mold. These reusable plastic molds are heavy duty but also flexible and made to last a lifetime. These molds are also great for polymer clay products. This mold makes three shapes ranging in size from 1x1in to 1-1/4x1-1/4in. Mold itself measures approximately 6-1/2x 4-1/2in. Made in USA.