Pentel Graphgear 500 Automatic Drafting Pencil,roulette Grip & Metal Body Model -0.5mm- & Pentel Ain Clic Retractable Pen-type Triangle Eraser Professional Value Set(with Values Japan Original Discription of Goods) The pencil for the pro whom the world accepts It is the same structure as Graph Gear 1000 except the portions of a grip and a clip. It was attached in popular eraser .[Ain Clic] of the holder type.(Triangle Body) The eraser can use properly and erase a fine point and a large point of angle or ceter