High-quality HB-grade lead is strong and durable. With every stroke itproduces consistent marks and reliable results across a wide range of media.These dependable refills are highly recommended for Tri-Grip Aspire Clicksterand additional Paper Mate pencils (sold separately). Lead Degree (Hardness):HB Lead Color: Black Refill(s) For: Auto: Advance All Logo Aspire Clear PointClickster Clickster Grip Comfortmate G-Force PhD PhD Ulta Protouch IISanford Technician Technician II Titanium TopNotch Grip Vibz Visibility XtendLead Diameter: 0.5 mm.Unit of Measure : EachMake sure this fits. by entering your model number.Lead_Degree_Hardness - HBLead_Color - BlackRefills_For - Auto: Advance, All Logo, Aspire, Clear Point, Clickster, Clickster Grip, Comfortmate, G-Force, PhD, PhD UltaProtouch II, Sanford Technician, Technician II, Titanium, TopNotch Grip, Vibz, Visibility, XtendLead_Diameter - 0.5 mm