Pour resin into these molds to create stunning geode-shaped pendants. You can string them onto chains to make customized necklaces. Details: Geodes 2 pieces Silicone Reusable molds Contents: Large geodes mold 2.1" x 1.5" x 0.6" (54mm x 37mm x 14mm) Small geodes mold 2" x 1.7" x 0.6" (51mm x 44mm x 14mm)