Product Review of Derwent Onyx Pencils

I have decided to start product reviews of Art supplies I buy online.
this is a review of some Onyx Pencils I recently got. Find them on Amazon here

Here is a compression to Onyx, Charcoal, and a mechanical  pencil with 0.7 HB lead. on medium grain drawing paper

The eraser  is better for smudging then erasing, and the sharpener is good for getting a fine point
   I had hoped the Onyx pencils would be darker then the charcoal pencil, but it's about as dark a HB graphite pencil.

I give this a 4 out of 5 stars rating
three stars for the Onyx pencils plus one star for the things that come with it.

click here to see a drawing I made with is product

Update: 3-4-14

I guess it must have been the type of paper I used, as my Onyx pencils look darker on printer paper. I've also found out that as Onyx is dark graphite, it works great with paper tortillons and stumps, and kneaded eraser, but unlike charcoal, it doesn't mix well with charcoal white. I found this out as I actually used them for making a drawing with them.