It IS funny how one person loves an item, but another doesn't... I love using Invisigrip on my rulers! It's the first thing I do... I also agree with so many of you... be careful buying specialty rulers!! Have you all tried looking at the Thimblelady thimbles? I'm not associated with her... just took a class, and LOVE the plastic thimble I bought. I'll be buying another one, just so I will always have one (I use it for hand quilting...) you can google her for more info...