STAEDTLER REG Mechanical Pencil 0.5mm 925 85-05B Matte Black Design A high-rigidity metal body and meticulously adjusted body balance create a stable writing feel. A knurled grip that is carved to fit the hand better. This design pursues beauty and functionality to make writing enjoyable. Attention to Detail Even small frustrations, such as the lead extending too much or too little with each click, or the wobble and vibration of the lead tip while writing, can accumulate and cause significant stress. We have focused on minimizing such noise with a lead tip that doesn't wobble and a lead advancement amount that can be adjusted to your liking. Equipped with a Regulator By turning the gear called the regulator, located at the top of the clip, you can adjust the amount of lead advanced with each click. REG offers the enjoyment of being able to customize it to your liking. -Features & Quality- ・Stable writing feel due to the metal body and precise balance design ・Knurled grip for a non-slip and comfortable fit in the hand ・Equipped with a "regulator" that allows you to adjust the lead advancement amount per click ・A premium model that combines design and functionality -Specifications- ・Lead diameter: 0.5mm ・Body size: W140.5 x H11 x D9.5mm ・Body weight: Approximately 22.5g ・Package size: W170 x H50 x D20mm ・Package weight: Approximately 46.4g ・Material: Metal body (details not specified) ・Country of origin: Not specified ・Color / Model Number / JAN Code: 　 Matte Black 0.5mm Limited Color / 925 85-05B / 4955414929248 -Functions- ・Adjustable lead advancement amount to your liking (regulator function) ・Designed to suppress vibration and lead wobble, preventing distraction ・Widely applicable for work, study, drafting, and design purposes