The big surprise for me though was the free gel eye liner. Now I am not a massive fan of gel eye liners, I love my Collection liquid liner and don't really use anything else. I gave the Back Lash eye liner a go though and I love it! I have tried gel ones before and found them hard to work with and they didn't last as well as liquid. This one though is more like a mousse than a gel which makes it much easier to use. I found it went on much smoother and with a neater line than other gel liners. I did find it hard to get a thin line but that should come with practise. I also love how with a smaller amount you can get a smudged look and less of a heavy black line. For a freebie, this is lovely and I can see myself getting plenty of use out of it as it seems more versatile than my Collection Liquid liner.
The Seventeen Back Lash mascara is £5.49 at the moment in Boots with the Back Lash liner free. Have you tried it yet?