This is professional hair shears with precise tension screw,convex edge Well-proportioned honed edge line and slide way,good hand feeling,very sharp Material: SUS440C Hardness: 58-60HRC Sharpness level: 5stars Size: Overal Length 6.3Inch; Blade Length 2.28Inch Net weight: appr 1.7(oz) Note: This scissors finger holes size is normal,it is not suit for people with big fingers.