MECHANICAL PENCILS: Each of the 24 blue (Azure #130) colored pencils are pre-filled with 1 blue sharpened and bold 2.0 mm lead that is color matched to the pencil. All pencils contain a built-in sharpener located on the back of each pencil. The hexagon barrel is easy to grip and prevents your pencil from rolling away. LEAD FEATURES: Each blue lead is 2.0 mm wide, 90 mm length (3.54 in), smudge & break resistant, and partially erasable. Scroll down to view the Amazon page for 36 refills. LEAD QUALITY: These blue leads are formulated with smooth and rich cores that easily allow for blending, shading, & shadows. Perfect for highlight, marking, editing, and more. Our colored lead formula is one-of-a-kind, unique to June Gold and will outperform all competition. USES: Perfect for the heaviest and regular use on arts & crafts, carpentry, construction, fabrication, underlining, scrapbooks, journals, decorations, greeting cards and much more. COMPATIBILITY: These pencils can be refilled with any 2.0 mm sized lead in any color, however they perform best with June Gold's set of 36 blue refills also available on Amazon. June Gold 24 Blue Colored 2.0 mm Mechanical Pencils, Bold Thickness, Built in Sharpeners