1. The brand Name of the pencil, pencil color
2. Lead color

brand name 
width of pencil 
colour of pencil

Along with the above when holded, it gives a good grip
Another can be when written, the words are clearly visible 
means it is dark

brand name 
lenght n width of pencil for proper grip
colour of pencil
lead should be sharp n dark for good visiblity

1.Brand name of the pencil
2.Colour of the pencil
3.Length and width of the pencil
4.check for the availability of lead
5.Lead should write dark 
6.Check whether the pencil is of specified  type(may be
drawing pencil,casual etc...)
7.check whether the lead is strong as necessary(quality of
the lead)
8.check the lead is writing smoothly
9.check whether the pencil is  easily breakable(should be
strong enough as applicable)