The Pilot Progrex Mechanical Pencil is the ultimate eco-friendly tool for precision and comfort, crafted from over 70% recycled materials. Available in four specialized lead sizes; the surgical 0.3mm, the everyday standard 0.5mm, the sturdy 0.7mm, and the unbreakable 0.9mm. There is a Progrex for every writing style. Each pencil features a soft ergonomic grip to fight hand fatigue and a clever sliding sleeve that protects your lead from snapping