Zebra - Zensations Ergonomic Mechanical Colouring Pencil - 2.0mm - Set of 10 Refill Leads

I like the idea of saving wood and waste by using these and I am enjoying them but the quality that enables them to be used like this means they are very hard and so don't put down much colour without damaging the tooth of the paper. For light sketching though they are good and the box is clever and doesn't take up much space

They're ok, the only advantage for me is that I can use them in my pen, other than that, they're just the same as any other (cheap) colour pencil, nothing special.

Great product