New Black Foam Ring Display Tray Insert For Jewelry Showcases & Countertops. This is a new black foam ring display tray insert pad that holds 72 rings. The top of the foam pad is black felt. At shows it is great for showing your sample line display. This tray is fantastic for travel by keeping the rings organized. Easily remove the tray from the showcase to allow customers to view your jewelry from the countertop. It measures approximately 14 1/4" x 7 3/4" x 1/2" (36.1 cm x 19.6 cm x 12 mm).