I love the size of these levels! It's really not easy to find a decent 16 to 18 inch range, most of which are 12 or 24 inch sizes. They fit perfectly in my DeWalt Tough System tool boxes. I bought two of these so I can have one in two different toolboxes, but I love them so much I will be buying two more so I can have one in each task-related toolbox! They're not overly accurate, but they're definitely accurate enough for me as a general contractor, because if something needs to be EXACTLY aligned, I break out the Stabila. Their construction actually reminds me of the stabila light aluminum profile levels. Looks and feels very similar, just not quite as accurate.