Rotring High-polymer fine leads to fit the Tikky mechanical pencils are a high quality lead that is strong and easy to erase.
These leads fit the .7mm Tikky Mechanical pencils with each pack containing 12 leads.
Pencils are graded based on the ratio of clay and graphite each pencil contains. More graphite gives a softer, darker line while more clay makes for a harder, lighter line. A HB pencil is equal parts clay and graphite making for a great all around option.
Pencil grades from hardest to softest:
4H, 2H, H, F, HB, B, 2B, 4B, 6B, 8B
||HB Pencil Refill
|Quantity in Pack