[material]: tool steel[size]: the outer box is about 195mm*175mm*25mm[weight]: about 650 g / box[note]: This engraving knife is 8 a box， and the 8 set includes the followingFlat knife: 1 9.5mmOblique knife: 1 10mmCircular knife: circular knife 1 9mm lying round knife 1 10mm bending round knife 28mm 10mm (the size of the standard is arc length)Corner knife: 1 6mm (Dan Bian long) corner knife a 5mm (Dan BianLong)The knife knife knife head size: length 158mm 60mm 98mm shank shankDiameter 21mmThe knife knife knife head size: length 158mm 60mm 98mm shank shank