New Gem Jar Tray Insert For Jewellery Displays, Showcases & Countertops This is a new gem jar insert that contains removable clear plastic round jars These jars will hold all of your loose stones, beads and coins Each gem jar comes with a insert pad inside and lid Has 50 gem jars The inside diameter of each gem jar measures approximately 1" (25 mm) The cases measure approximately 14 1/4" x 7 3/4" x 3/4" (36.2 cm x 198 mm x 18 mm) It is recommended that this be used with a display tray