Uni Kuru Toga Auto Lead Rotation Mechanical Pencil 0.5 mm Rubber Grip Type /Blue Body/with the Spare 20 Leads Only for Kuru Toga Value Set (with our shop original product discription) Twist and turn mechanism rotates lead as you write to keep lead sharp Engineered to resist breakage 0.5mm point lead for more precise writing The lead only for Kurutoga is attached. (Uni is the lead developed for Kurutoga) The center of a lead is hard and the outside is made softly Therefore, it can write in the more sharp state