A lot of people see my pencil on Instagram and ask what it is, well it is a Graphgear 100 0.5 by Pentel and I normally fill it with 2B lead.
I have had this pencil for about 7 years and I could not live without it. It does pretty much everything I ask it to do from fine line work to shading. Even though it is 7 years old it is still as good as the day that I bought it. Its comfortable to use and a lovely weight to draw with.
I can't recommend it highly enough, it will be the best investment for your drawing that you will ever make. I have added a link the Graphgear 100 in source link below.
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