Seriously, this Alumicolor AlumiCutter is one of the most useful tools you'll ever own for crafting and measuring! The 12-inch aluminum ruler has a steel edge that's perfect for cutting with hobby knives or rotary blades. The innovative raised edge and finger groove design actually protects your fingers while cutting - such a smart safety feature! The recessed neoprene backing keeps it from slipping around, so you get precise cuts every time. Made from extruded aluminum with photo anodized calibrations that won't wear off over time. It's perfect for measuring, cutting, drafting, framing, or any craft project where you need a reliable straight edge. The black finish looks professional, and the construction is seriously durable - this is a tool that will last forever. Whether you're working on scrapbooking, model building, picture framing, or any DIY project, this ruler makes the job so much easier and safer. The non-slip backing is genius - no more ruler sliding around while you're trying to make perfect cuts. It's one of those tools that seems simple but once you use it, you'll wonder how you managed without it. Definitely worth adding to your toolkit if you do any kind of crafting or precision work.