The OLFA 45mm Quick-Change Rotary Cutter is the best option for quick fabric cutting in all of your sewing and quilting projects. Increase your productivity by cutting easily through up to eight layers of cotton fabric at a time. The contoured handle with integrated finger grooves makes for comfortable cutting. The blade guard extends to cover the sharp edge when the cutter is not in use. Blade changes are simple and fast with the Quick-Change system, allowing the blade to be swapped out at the push of a lever.