The Fiskars Rotary Ruler Combo is designed to cut through multiple layers of fabric with an attached ruler that makes measuring and making perfect cuts a breeze! With this combo tool you no longer have to manage two tools separately which will eliminate struggling with a misangled ruler or having to worry about holding your rotary cutter straight. Equipped with a 45mm spring-action rotary blade and an ergonomic blade carriage that make cutting smooth and easy. The 6" x 24" ruler features a bold grid printed on both sides for left or right handed use and highlighted numbers for great visibility on light or dark fabric. The unique rail design prevents lint build up while you work. Change blades safely and easily with the no-touch magnetic change system. Includes a carrying handle for easy and convenient transportation.