Mine are metal and if I remember, there are 3 or 4 in a pkg--all different sizes. I got m,ine at the quilt store. JoAnnes is on the other side of town and I didn't have time to get over there, and back to the quilt shop if they didn't have them. anyway they were $10.00 I used them on strips for the woven basets to be on my pansy quilt. They work really well.