Model Number: 3"-12" blade-#4395 Brand Name: qichuan Key Specifications/Special Features: Material: aluminumPaint finish: white, black and brownThickness: 0.9-0.95mmBlade size: 6"Size: 1-3-9-12 bladesPacking: each pair/bag, 10 pairs/carton SizeEach pair net weight kg/carton kg/carton 3 blades 337g 4.0kg 0.0108 4 blades 450g 5.1kg 0.0142 5 blades 560g 6.5kg 0.0175 6 blades 680 7.6kg 0.0209 7 blades 790 8.7kg 0.0242 8 blades 900 10.0kg 0.0276 9 blades 1000 11.2kg 0.0310 10 blades 1125 12.45kg 0.0343