Trigraph triangular graphitepencils grade HB and Trigraph Maxi grade B.With astrong lead, very pleasant for drawing and with extra smooth wood which can be sharpened very easily.Manageable pencils and very good covering power properly sharpened, they enable maximum drawing precision.The leads are graded from soft to hard: B and HB.Triangular shape for a better grip and to prevent the pencil from slipping.Suitable for any type of drawing surface or material.
