This is a set of mini notebook covers made of recycled cowhide leather and a Japanese belt closure pen case and ballpoint pen.
The pen is 3 mecha pens (3 in 1 with a black red ballpoint pen and mechanical pencil).
An advanced mechanism that allows you to expose the purpose function by simply knocking the purpose function to the top of the pen axle straight horizontally.
Just touch the side button to release the function.
When using the mechanical pencil, knock the top part after exposing the sharp tip to activate.