1: 18mm heavy safety knife, blade length is 80mm,replace folding knife, easy to carry. 
	2: more thicker blade holder,  1mm thickness, longer serive life, not easy to damage, there is a small gap between the blade and holder, so the cutting is more accurate. 
	3: blue laser blade, 0.6mm thickness, 20% more than ordinary blade, HRC more than 66, durability is increased by 
	4 time .                                                    4:autolock button, lockforce more than 25KG 
	5: tolerance between holder and blade is within "0" , make the cutting more accurate. 
	6: it can be used after the drop test from 10m height.