660 Graphite Lead Refills that are 0.3 mm, #2, HB, and 60 mm Tall | 4 Dispensers with 165 Refills Each | QUALITY: Our leads are formulated to write uniformly and smoothly for all day writing and breakage resistance. | DISPENSER: Each dispenser was designed with consideration for convenience and simplicity resulting in exacting and effortless dispensing. | COMPATIBILITY: Our lead works with any brand of 0.3 mm mechanical pencils and is perfect for standardized tests and scantrons.