The Zebra Drafix is a mechanical pencil available in 0.3, 0.5, 0.7 and 0.9mm versions. Each size has a different coloured ring – this 0.5mm version has a red ring, as you can perhaps tell.
This Zebra Drafix ticks all the right boxes: low cost; eraser; long fine lead sleeve; grade indicator; size indicator; and metal clip.
The plastic feels completely cheap and horrible. This is a very cheap pencil but, honestly, it felt so bad I never ever wanted to pick this pencil up to use.
There are few other pencils in this price range that tick this number of boxes but I would suggest you either spend a little more or settle for fewer features and get something that is good to hold and write with.