File .3dm .printable. Clean and clear file. No background. Ready to 3d print File contains gem stones, You may need to remove them before printing depends on your purpose.Dimension: 19.50x18.25mm1 gemstone diameter 4.5mm, 1 gemstone 3.5mm, 1 gemstone 2.2mm, 5 gemstones 1.6mmPleasant use!