Kuru Toga High Grade Auto Lead Rotation 0.3mm Mechanical Pencil, Blue Body (M3-1012)

The Kuru Toga Series from Uni-ball Mitsubishi has a core rotation mechanism that can automatically rotate the pencil lead as you write. The lead is

Uni Mechanical Pencils M5-1017 Kuru Toga Roulette Model Auto Lead Rotation 0.5 Mechanical Pencil Office & School Supplies 0.5mm - Mechanical Pencils - AliExpress

Uni Kuru Toga High Grade Auto Lead Rotation 0.3mm Mechanical Pencil, Blue Body (M3-1012)

Uni Kuru Toga Mechanical Pencils: Auto Rotating Leads

Uni Kuru Toga Advance Mechanical Pencil - 0.3 mm - Lavender

Uni Kuru Toga Auto Lead Rotation Mechanical Pencil

Kuru Toga Roulette

Wholesale Cheap Metal Pencil - Buy in Bulk on DHgate.com

三菱鉛筆 KURU TOGA（クルトガ）ハイグレードモデル シャープペン（0.3mm） M3-1012

Products - Imported Products from USA - iBhejo

Uni Kuru Toga: A Comprehensive Guide

Uni Ball Kuru Toga Mechanical Pencil FOR SALE! - PicClick