The Prym teflon-coated needles are in the middle range of our needles as far as slickness goes. The teflon coating makes the needles smooth but not as slick as nickel-plated needles or as grippy as wooden needles. Sizes 0 through 8 have the teflon surface. Sizes 9 and larger are plastic. These are among our most economical needles but still perform well.