5 New White Faux Leather. Ring Display Tray Inserts For Jewelry Showcases & Countertops. This is a new set of five white faux leather 8 row continuous slot display tray inserts. With these inserts you are able to keep your rings organized and visible. Easily remove the tray from the showcase to allow customers to view your jewelry from the countertop. Each insert measures approximately 14 1/8" x 7 5/8" x 3/4" (35.8 cm x 19.2 cm x 19 mm).