The brass ballpoint pen does not require an eraser, so a ring that allows a string or hook to pass through is attached instead. You can also hang it from a bag or belt like a key ring. Pens that have many opportunities to be handled have a fast aging of brass, and as soon as they are used, they change to a tasteful color, creating the charm of a tool used by craftsmen.
The ballpoint pen does not require an eraser, so we added a ring so that one can customize the pen with a string or a hook. By doing so, you can carry this around like a key holder and hang it on your backpack or belt. Since people use pen frequently, the rate in which the color and texture of the brass changes is faster, so you can tell the change it goes through quickly. This will give the pen a feeling of an old tool that a craftsman has been using for a long time.
Through its use, the surface starts to oxidize, and this deepens the color and adds taste to the material. Besides, there may be slight scratches as the surface is not plated to enjoy the texture of brass and change as it ages. By a long time use the change in color lessen the concern.