Alumicolor AlumiCutter, 18". This AlumiCutter is ideal for trimming, cutting and measuring with consistence and accuracy. Use safely with a craft blade, a razor or rotary blade. Made from quality aluminum for ultra smooth edges, with an anodized finish that gives you a satin-like feel. The photo-anodized calibrations are resistant to cleaners and will not rub off - measure and cut your projects with confidence!