If you are a circular sockknitting machine knitter.. then these are for you!  I have sets of three heel fork sock weights for sale.  They work so much better than the old half-moon spiked device or trying to use your hands or thumbs  to pull down with even pressure while knitting the heels and toes of socks. My husband makes these for me. The three 1 pound lead weights are covered in a rubberized coating.  Shipped Priority Mail Flat Rate box