I was gifted this pen body a few months back. I have used the pen as sparingly
as possible but even so, the body easily cracks near the twist to open it. The
bottom gets slippery easily too, but it is easily fixed if you have a spare grip
from a Pilot Dr. Grip pen/pencil.
I like how the cartridges don't rattle when they are clicked or when you write.
Unfortunately, with the mechanical pencil cartridge, I feel that the pressure
exerted to push the lead out is too strenuous for the cheap, plastic pen body.
I love Uni stationary, but it's hard when the pen body keeps cracking.
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