Pentel Quick Dock Colors, 0.7mm, Medium Line, 1 Pencil, 1 Refill Cartridge and 3 Erasers (QD7LECRBP) Write for weeks on end without refilling 12 leads in a pre-filled cartridge; it's like getting a whole refill pack in your pencil at once Cartridges make for an easy, no mess lead replacement 0.7mm, medium lines Assorted Barrels and Colors - Item color will vary