I have a collection of rulers given to me by a friend when she was downsizing..I have never used one of them. I have my original fiskar 6X24 ruler with the attached rotary cutter that I use all the time from the day I started quilting 8 years ago...Too bad the do not make them anymore, as I would get another one....I keep watching ebay etc for a used one for sale...I have a June Taylor mat which works OK...I rarely use the lines except when I want to "level" the fabric to cut