This is a luxurious brown crocodile leather business card holder. I received it as a gift and haven't used it. Both the inside and outside are made of crocodile leather. It's elegant. - Material: Crocodile leather - Color: Brown - Design: Bi-fold business card holder - Brand: Henlong Thank you for looking. Color: Brown系 (Brown shades) Material: Genuine leather Stains, tears, odors, etc.: None