Today, in the mail, I received my 4th set of Grip Strips. I am hooked on them! I have re positioned some of the Grip Strips; but I want enough strips so that when I need some, I don't have to take them off another ruler. My latest use for Grip Strips is to put them on my homemade templates. Recently, I have cut templates from an old cutting mat. When I put Grip Strips on the template, that makes it high enough that the template is perfect to use with a rotary cutter and the template does not slip. I think these templates will last as long as I am quilting. I have some very small rulers, e.g, 1"", 2 1/2", etc. Without the Grip Strips, those rulers tend to slip if I am not careful. With Grip Strips, I have never had a ruler slip. They are a bit expensive; but they are so worth the money to me.