Tombow Irojiten Colored Pencils, Grayscale & Sepia, 10-Pack 10-Pack; Irojiten Colored Pencils Grayscale & Sepia Sets High quality wax-based, artist grade pencils Hard and dense lead provides a strong point and holds sharp point longer, requiring fewer sharpening's Wax based lead produces rich, creamy texture and smooth even blending Pencils have an elegant enamel finish