1/Blade material:60 Carbon steel 2/ box materials: cardboard 3/hardness: HRC 58-60 4/size:40*20*0.25mm 1/The blade material is 60 carbon steel or SK5 or SK22/clip material:Pure iron galvanized3/size: 40*20*0.25mm4/blade hardness: HRC 58-605/Packing method meas:A piece of paper sets , 100pcs/paper box , 50box/carton6/weight :17/16kgs 7/MEAS:25*23*16cm Single-sided safety razor blades