American Crafts-DIY Shop 4 Mini Mason Jar: Gold. This jar is ideal for storing small embellishments, memorabilia and more! This package contains one 5x2-1/2x2-1/2 inch mini mason jar. Acid free. Archival quality. WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm. Do not mouth or chew. Imported.