1.50% Sharper with triple cutting edges.
2.Retractable holder.
3.Press the button,pushing blade.
4.SK4 stay sharp 3 times longer.
5.Hardness---More security when the blade break.
6.Zinc-Alloy case with rubber covered.
7.Blade body looks beautiful,comfortable grip,easy to carry.
8.Blade thickness:0.6mm.