Never heard of one, naughtyforty... saw this http://www.lakeland.co.uk/F/product/3528

I got sommat that would do the same, much cheaper... plastic scrubbing pads.

I bought two ten pound bags of carrots last fall for 77p Canuck each.
I don't have a cold cellar (root cellar). So, as I had a heavy duty sweatshirt that was coming apart at the seams, I cut it into large strips. I made sure the carrots were dry and then wrapped them in the sweatshirt strips, placed them in a plastic grocery bag twisted shut and set them in my fridge.

I just used three carrots that were in good condition... after about four months in the fridge.