John I copied yours, they are made from PVC pipe, which when I checked my junk bin, found are in various thicknesses, from 1mm to 3mm, so 2 - 3mm was just about right. As for the lures, I am having varying results, from great to so so with the action - this is a lot to do with my inexperience with weighting these. Playing with tails now, as these seem to have a positive effect.pete