Made of high grade quality SKS-7 steel, hardly dull, durable and has a long service life, the 45mm rotary cutter blades offer astonishing sharpness, making our rotary suitable for cutting multiple layers of fabric, paper or other materials precisely. Your security is our top priority, our rotary cutter set is designed with a safety button, in order to lock the blade, prevent the blade from coming out unintentionally and prevent injury and accidents. Comes with 7 extra replacement blades, our 45mm rotary cutter is replaceable. 4 blades for straight line cutting, 2 for curve cutting and 1 for dotted cutting, to meet your different cutting needs. Compared with traditional cloth cutting scissors, our rotary cutter blades can cut through several layers of fabric, paper, or other materials easily, thus saving all the trouble of scissors cutting everything. Our rotary cutter makes cutting material so much faster and perfect cuts. Equipped with an ergonomic handle for better and firmer gripping, our fabric rotary cutters are perfect for both right and left-handed users. It helps you to get precise cutting on multiple layers of fabric, paper, vinyl, leather and more. Specifications: Color: As Picture Shows Materials: Plastic, SKS-7 Steel Size: 9x3.5x5cm / 7.4x1.3x1.9inch Weight: 130g / 0.28lb Blade Diameter: 45mm Package Includes: 1 x 45mm Rotary Cutter 7 x Extra Blades