V-Penknife / Lifestyle products

We always support our thumb against the back of the blade to sharpen the pencil, it's inconvenient to push the blade,and it hurts. One minor change we make on ordinary knife can throw off the problem above.
Spin the V-cover off to sharpen the pencil, you can better control force with finger on v-cover.
When cutting paper,spin the blade out as usual, therewith the v-shaped cover will rotating back to its original place.