I can't even remember the name of them but they are little rubber stoppers to put onto straight pins to hold them in place so you don't have to pin your quilt with safety pins. WHAT A WASTE OF MONEY! I tried to use them; they are very hard to put onto the end of the pin especially if you have arthritic hands which I do. They don't stay in place. They fall off onto the floor and the dog tries to eat them. I have them in a safe place now. In the drawer. They also cost me a wopping $35.00. Stupidest thing I ever bought.