Your welcome. By the way, they should all have an indention in the middle. That is what forms the suction when you move the clip up and down. GiGi
I used the wrong term I should have said knot The knot feels like a spring. The other cup doesn't have that and it sticks fine.
I have the real small purple gripper as well and I really like it too. I don't use it as much.
For Tina in OKC. I purchased mine at the quilt shop in Norman. Since I don't have the box or receipt I don't know if they will exchange or not. I can call and find out. It would save me from shipping it to GA and then having to wait for a new one.