Price Lead Degree (Hardness) 2B (1)2H (1)3B (1)3H (1)4B (1)4H (1)6B (1)6H (1)B (1)H (1)HB (1) Brand Name Staedtler Mars (10)Staedtler (1) Features Break Resistant (10)Super Bonded LeadBreak ResistantEco-friendly (1) Lead Color Gray (8)Black (1) Product Model 100/6B (1)100/HB (1)