The Kai 7000 Professional Series, are made of a high carbon, hardened stainless steel. The addition of carbon allows for a steeper cutting angle, giving the scissor a sharper, finer edge. The carbon also allows the finer edge to be more durable, which in-turn, extends the cutting life of these professional scissors.The Professional Series Shear is ideal for cutting thicker, more difficult fabrics with ease and meets most sewing project cutting needs.Made in JapanWeight 303g.