Stationery recycled / stationery

When the craft knife is not sharp anymore, we always snap off blades in order to use craft knife easier.
All the time when we snap off blades with worrying feelings because afraid of blades will be flown everywhere.
We will create a box in the removable end cap to help collecting bull blades.
The characteristic of the material can increase friction force in order that blades are not flown out easily as well as
the bull blades are fallen into collection box.
Moreover, it can collect the combustible blades quickly.