Set of 13 size (1mm-6mm) 1mm,1.25mm,1.5mm,1.75mm,2mm,2.5mm,3mm,3.5mm,4mm,4.5mm,5mm,5.5mm,6mm Made with Good Quality Rubber & Steel Imported Variety of Size makes it easy to work with Rubber Grip Allows consumer to use the product with ease for hours Suitable for Thread,3ply & Double knit