These are the finest, thinnest pins we have ever seen! They are also long and sharp so they can hold down your applique with ease, reducing puckering and distorting. The stainless steel pins are also flexible, allowing them to negotiate slight curves in your appliqué with ease. They are so thin that Karen advises spilling them out on a piece of felt to make picking them up easier. 'Perfect Pins' by Karen Kay Buckley. Includes 50, 1 1/2", extra thin applique pins.