Complete waste of money. On first use abrasive ends on both tools came completely detached!
Used on shower plug so very good unimpeded access. No reason for failure other than useless feeble construction of snakes.

Just bought it at Big W for $10.00 Unclogged both vanity and shower plug holes in less than 5 minutes. Heed the warning and wear eye protection as you could wear what you pull out.

It looks like it ought to do the job ... but it doesn't. Once placed into the drain, as soon as it hits a bend, that's where it will stop. Not possible to twist it once it's in place either. $10 form Big W - wasted. What a pity. It actually made our problem worse by pushing the blockage further into the drainpipe. Use at your own risk
Cheap
Doesn't work