Nielsen Box Frame aluminium frame with natural glass glazing. Show off your special collectible shirt using an affordable Nielsen Box Frame. Backloading frame, like a traditional frame, it offers high quality Acrylic Glass within a 16 mm Aluminium moulding. Included with the frame is a thick card profile for shirt hanging. All of our Nielsen picture frames are top-quality aluminium with stringent Quality Control by Nielsen, the world leader in quality Nielsen picture frames and framing. Available finishes: Frosted Black and Frosted Silver.