The Kaweco Sketch Up Pencil is a high quality, heavyweight pencil. The robust design and beautifully machined metal sets this pencil apart. It features an octagonal barrel and push-button drop-clutch mechanism. It even has a lead sharpener hidden in the cap; simply unscrew the push-button use. One 5.6 mm 5B graphite lead is included, although this clutch will accept any leads sized 5.4 to 5.7 mm. This feature makes the Sketch Up pencil super versatile and perfect for writing, sketching, shading, and drawing.