This Olfa 45mm rotary cutter is a combination of comfort, convenience, strength and safety. Its ergonomic handle with anti-slip rubber grip eliminates hand fatigue and stress, while the squeeze trigger allows the blade to self-retract for safety. The cutter can handle up to six layers of thin materials. And the quick blade change feature won’t slow down your project. The blade is made of high quality tungsten carbide tool steel for unparalleled sharpness and superior edge retention. Good For: cutting strips and multiple layers at once. Cuts fabric, paper, tarp, vinyl, upholstery and more.