Use this mold to make rocks anywhere earth and sediment have created layers of rock. Mold is flexible and reusable.
Tray measures: 5 in x 7 in (12.7 cm x 17.7 cm)
Rocks range in size from smallest: 4 3/8" L x 1 1/8" W x 3/8" H to largest: 6 3/8" L x 3 3/8" W x 7/8" H