Quilting Bee 45mm Deluxe Rotary Cutter for Quilting, Crafts and Scrapbooking (RCDX45) ERGONOMIC DESIGN. The ergonomic handle is designed for comfortable cutting. In addition, the blade may be used on either side of the cutter for right- or left- handed use. QUALITY BLADE. Our cutter uses an SKS-7 tungsten steel blade (included) and can easily cut through up to 6 layers of material or batting. SAFETY FIRST. The blade automatically retracts when the handle is released, reducing the chance of accidentally cutting yourself; and the dual-action safety lock either locks the blade closed or open. VERSATILE. May also be used with pinking, scallop/peak, and wave blades for decorative edging. 10-YEAR WARRANTY. Quilting Bee&reg; products are durable and designed to last. Quilting Bee&reg; is a brand that you can trust.