black plastic eggcrate has multiple uses iincluding hvac air distribution, lighting, awnings, signage, and pop displays. It is injection molded in a single piece making it durable and strong. Plastic reduces dust accumulation and is scratch resistant due to the color being molded into the panel. Package of 5. Also available in white and chrome. features overall size 23 5/8″ x 47 5/8″ polystyrene