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 two circle shapes measuring 2-3/8x2-3/8in and two diamond shapes measuring 1-7/8x2-1/8in. Mold itself measures approximately 7x6-1/4in. Made in USA.