Prym Express (silver) and Teflon (gray) Circular
Nickel plated ("silver") aluminum tips with lightweight plastic cord.
Slick finish allows for stitches to slide easily.

Prym (grey) Circular
Teflon coated aluminum tips with lightweight plastic cord and curved tip base.
Sizes 11 and larger have plastic tips and straight base.
Smooth finish that does not grip yarn or make yarn slide too fast.