Pentel Graphgear 500 Automatic Drafting Pencil,roulette Grip & Metal Body Model /0.3mm & 0.5mm Professional Value Set(with Our Shop Original Description 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. The profitable set was used so that two kinds of thickness could be properly used according to a use