The Kai 7230 scissor is made of a high carbon, hardened stainless steel. The addition of carbon allows for a steeper cutting angle, giving a sharper, finer edge, allowing the edge to last longer. This gives the 7230 a better ability to cut thicker fabrics.
These scissors are lighter in weight and effortless to cut with so if you have sore or arthritic hands you will love the feel and ease of use these scissors have.