Trü-Fit arrives in a 4-inch wide, 7.75-inch tall cardboard box; it’s about a quarter of an inch thick, compared to the flat envelopes we’re used to seeing. You tear a perforated tab across the top to open the box, which unfolds into a cross shape. On the left of the main panel are the installation instructions, below there’s a list of the contents, and to the right, there’s a pocket holding the film and accessories. Right…
