FindingKing Black Foam 15 Gem Stone Jars Box Travel Tray Display This is a new gemstone insert that contains 15 removable clear plastic round jars These will hold all of your loose stones, beads and coins Each gem jar comes with a black insert pad inside and lid The inside diameter of each gem jar measures approximately 1" (25 mm) The insert measure approximately 7 3/4" x 4 1/4" x 3/4" (197 x 108 x 19 mm)