The Derwent Precision Mechanical Pencil 0.5mm Refill Set is the perfect way to keep drawing and sketching for longer with your mechanical pencil. The refill lead and eraser set is ideal for a huge range of projects. The smooth laydown of graphite is perfect for fine detail and cross hatching techniques, while the leads have a strong point for extended use and minimal breaking. There are 15 HB leads included, along with 15 2B leads and three replacement erasers. Size: 0.5mm Includes 15 HB leads, 15 2B leads and three replacement erasers Designed for the 0.5mm Derwent Precision Mechanical Pencil Leads have a strong point for extended use and minimal breaking Smooth laydown of graphite Ideal for sketching and drawing Perfect for fine detail and cross hatching techniquesDerwent Precision Mechanical Pencil 0.5mm Refill Set