12 Gem Stone Jars Display Black Foam Tray Travel Insert This is a new black gemstone jar insert Contains 12 removable clear plastic round jars This 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 1/2" (39 mm) This display pad measures approximately 7 3/4" x 7" x 3/4" (196 x 178 x 19 mm) It is recommended that this be used with a display tray