Acrylic 5-Sided Box w/ Hinged Lid - Buy Acrylic Displays ... Our Acrylic 5-Sided Box with a Hinged Lid is made of thick clear acrylic, giving you the ability to see what's inside while not skimping on sturdiness. Boxes with hinged lids are great for display or storage. Versatile in design, they can be used as dump bins with lids for loose items in retail, or to keep supply closets organized at the office.