30,60,45design fits most of cutting plotter.High quality and extra Long life.Super wear ,high hardness,Application:fit for and most domestic and imported plotterwith higher hardness (HRA93)greater strength, tip more sharper,cutting plotter lettering fasterBlades is imported material through the grinding polishing processing,high precision, good lettering quality;Full length: 23.5mm diameter: 2mmColor: picture colorMaterial: steelPackage Content: 5* 30 degree yellow knife5* 45 degree red knives5* 60 degree blue knife2* tool holderOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.