•50% Sharper with triple cutting edges. 

•Retractable holder. 

•Press the button,pushing blade. 

•SK4 stay sharp 3 times longer. 

•Hardness---More security when the blade break. 

•Zinc-Alloy case with rubber covered. 

•Blade body  looks beautiful,comfortable grip,easy to carry. 

•Blade thickness:0.6mm.