Alvin Draft-Line Mechanical Pencil for 0.5mm LeadEconomical yet durable, these auto feed pencils feature a shock-absorbing reflex point for comfortable writing control and minimal lead breakage. Ideal for both drafting and general writing. The 4mm long stainless steel lead sleeve supports the lead and provides drawing accuracy even with thick straightedges. Offered in four lead diameters. Built-in eraser under cap.