This colorful material is a specific dichroic film called Olivine Mars, manufactured only in Vietnam. Main colors are yellow, blue, green, and red. Like all dichroics, colors change when viewed from different angles. Because each piece made from Olivine Mars is unique, the pattern in your pierces will vary slightly from these pictures. However both are cut from the same film sheet and will be every bit as beautiful. A set of these items can include a round pendant with matching round earrings or a rectangular pendant with matching rectangular earrings. A pendant and earrings are also available separately. A black cord is included with a pendant. Round Pendant Dimensions: 1” (25mm) D Round Earring Dimensions: 1/2” (12mm) D Rectangular Pendant Dimensions: 2” (50mm) H 1/2” (12mm) W RectangularEarring Dimensions: 1” (25mm) H 1/2” (12mm) W