INCLUDED: 108 graphite lead refills that have a 2.0 mm diameter, #2 / HB hardness, and 90 mm in length (3.54 in). STORAGE: Each refill is stored in a sturdy reusable plastic case. QUALITY: Our leads are formulated to write uniformly and smoothly for all day writing and breakage resistance. CASE: Each case was designed with consideration for convenience, simplicity, and survivability. COMPATIBILITY: Our lead works with any brand of 2.0 mm mechanical pencils, especially our June Gold mechanical pencils, and is perfect for standardized tests and scantrons. Perfect for art, drafting, carpentry and more. June Gold 108 Pieces, 2.0 mm HB #2 Lead Refills, 90 mm Length, Extra Bold Thickness, Break Resistant Lead/Graphite