Product: Uni M91010.26 Shift Pipe Lock Drafting 0.9mm Pencil, Silver Body with Red Accent (M91010.26)
Brand: uni
Color: Silver
Line Size : 0.9mm
"Tip storage" and "knock lock mechanism"
Finger does not slip, Roulette grip
Because the center of gravity in the distal direction, the ease of writing stable.

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