Yes, you need gripper of some type on your ruler to keep it from sliding when using. You want to have a slider on the machine to let the fabric move smoothly and gloves are helpful to allow you to move ruler and fabric. There are many rulers that it is helpful to apply a gripper to both sides of the ruler. I have tried several types of grips and there is a ruler tape that I like as it is flat and semi transparent and I also use Ruler Magic glue that can be washed off when it starts to lose grip. When using Ruler Magic glue I have now started sprinkling table salt on the glue as it dries and this gives me a better grip and again will wash off if needed. Next go to Sew Steady or YouTube and watch videos to learn how to use your new found toy. Sew Steady also has a Facebook page and have been doing a lot of video demos on different rulers along with tips, and give aways.