【 product Features]]:
1, high-quality tungsten steel treated at high temperature ensures efficient and sharp sharpening effect.
2, the considerate design of suction cup is non-slip it is not easy to cut.

3, back and forth 2-3 times blunt knife immediately becomes sharp.

4, quality and quantity

【 usage]]:

1, first find a clean plane to suck the suction cup.

2. Put it in the suction cup on the desktop and press the handle hard.

3, you can easily have a sharp knife after a few strokes back and forth.

【 precautions]]:
1, there must be no air in the suction cup, otherwise it is easy to cut if the air is not firm.

2. Pay attention to protecting tungsten steel from falling from high altitude during use.