This technical pencil is the perfect professional tool for all sketching writing and drawing applications. The full metal body has an ideal weight balance and a comfortable non-slip knurled metal grip. Hexagonal shape won t slide on tilted tables. The sliding sleeve provides a high level of break resistance and outstanding writing and doodling comfort. This pencil is equipped with a unique push mechanism for controlled 2.0 mm lead advancement. Limited warranty: guaranteed for 2 years from original purchase date against defects in materials or workmanship.