These abbreviations are used to indicate the hardness (H) and the blackness (B) of the pencil's graphite.  This means that a 5B pencil is softer than a 2B and the 5B will produce a darker mark. The 7B is the softest and darkest of the common pencils (8B and 9XXB pencils are even softer and darker).  In Bangladesh you can buy Wholesale Hb Pencils for business from our website.   HB pencil price in Bangladesh is very low. You can buy hb pencil set at  400 taka per Gurus , 33 taka and  Dozen  2.77 paisa per piece. Buy Cheap Hb Pencils 2020 from our B2B Website.  Wholesale Hb Pencils is available in our online shop.