FindingKing Glass Top Jewelry Coin Gemstone Display Case 12" New This is a new black gemstone tray which is considered a standard for showcase and trade show displays It has a glass lid to show off your gems Four pins keep the box securely closed so you don't loose any of those precious gems The inside of the box contains white polyfill batting to beautifully show the color of your gems It measures approximately 12" x 16" x 3/4" (30.4 cm x 40.64 cm x 19 mm)