Strong heavy-duty high-quality pencil with extra-thick lead writes smooth dark lines. It is pre-loaded with Pentel Super Hi-Polymer lead (1.3mm). Durable metal tip and 4mm sleeve stabilizes lead to prevent breakage and makes this heavy-duty mechanical pencil perfect for use with templates and rulers. Sturdy metal clip withstands repeated use. Latex-free engineered grip is designed for writing comfort. PROGear Mechanical Pencil is perfect for marking different types of surfaces such as wood drywall tile and more. It is refillable with Pentel Z2-1N eraser and Pentel Super Hi-Polymer lead.