Each is aluminum with a built-in security latch. Inside are eight slots for credit cards and ID. Plus it’s RFID-safe, guarding you from possible identity theft. 4½"w x 3"h x ½"d, it slips into a purse or pocket. Specify Almond Blossom, Café Terrace, Irises, Poppy Vase, Red Branches, Starry Night, Starry River, Sunflower by van Gogh, Great Wave by Hokusai, the Kiss by Klimt, or Garden Walk, Water Lillies, Water Lillies 2 by Monet.