Detailed Product Description Model Name: Cutter Knife SD-18Specifications:Synthesis body of ABS plastic and rubber, Six 60# hign-carbon blades inside,18mm long and 0.5mm thickConvinient to change the blade,Metal Snapper lock for safe cuttingThe Slide Card and blister Packing, with 12Pcs/inner box, 240Pcs/carton carton size is 59*36*45cm