Mechanical pencil features exclusive rotating lead mechanism that resists lead breakage and maintains a continuous sharp point. Perfect for the intricate writing tasks. By reducing dull spots on the lead, handwriting will be clearer and more precise. The uni-ball Diamond Infused Lead resists breakage and is stronger than the leading lead. Diamond Infused Lead improves the writing experience and creates dark, vivid lines. Starter set includes the 0.7mm uni-ball Kuru mechanical pencil, two erasers and one uni-ball 0.7mm Diamond Leads (40-count).