These are lead refills used for the First-Class Architect Examination drawing test. Try out various types and find the ones that suit you. There are more than 10 refills of each type. This is a bulk sale of mechanical pencil lead refills. It includes various brands, hardnesses, and lead diameters. [Contents] ・uni 2B 0.5mm ・uni HB 0.5mm ・PILOT neox GRAPHITE HB 0.5mm ・Pentel Ain STEIN HB 0.7mm ・uni 3B 0.5mm ・uni 2B 0.7mm ・TOMBOW MONO HB 0.5mm ・uni HB 0.5mm ECOWRITER