I don't have a problem with slipping when I'm cutting my fabric. I just use a 5 pound exercise weight to hold down my ruler while I am cutting. I think I got the entire set of excercise weights of 1, 2, 3, 4 and 5 pounds (2 of each weight) for under 15.00. I think some new 'inventions' tend to be gimicks that you'll use for a while and then set aside. Sorry.
eta: beside the fact that by reading about how to do it, by the time you set the ruler and magnets up for each cut of fabric you need to make, it's going to take so much time. I'll stick with my inexpensive exercise weight.
Last edited by quiltsfor; 06-12-2023 at 04:29 PM.