Quilter's Grip is a set of 2 odd-looking blue plastic shapes, one for the right hand and one for the left. They are easy to get on and off and they helped me move the quilt fairly easily for free motion quilting. However, I found my hands became cramped if I used them too long.
Quilter's Tips are harder to get on and off but they also worked well. I didn't have to put one on every finger to gain more control. I didn't have to remove them if I needed to trim threads but threading the needle took a bit more practice since I wasn't used to having something on my finger tips. They can also be used when hand sewing to get a better grip on your needle.