DUST-FREE YET AIR CIRCULATION: Our hat holder is designed to provide dust-free hat storage for baseball caps. With the ventilation holes on the back can keep the air circulation and prevent odor. SEE-THROUGH DISPLAY: Showcase your collection in style with our sleek hat display design with transparent walls and black rims. Store up to 6 caps per box to maximize storage or place 1 hat per box for a beautiful display. STACKABLE: Our hat case can be arranged however you would like - place them...