Areaware Crystal Glass Rulers

These crystal glass rulers are clever tools that allow you to actually see through to what you’re measuring below, rather than covering it up like most rulers do. Each one has a grid overlay that allows for precise alignment when placed above an existing image. When you’re not using them to measure things, they make great-looking paperweights on your desk.

The inches and centimeter rulers can be bought individually for $30 each, or you can save six bucks buying both at once for $54.