Fabricated from 2" diameter steel and then coated with plastisol. The 3-1/2" pound weights are supplied with one eyebolt attached to one end while the 7 pound and 14 pound weights are supplied with an eyebolt attached to each end.
3-1/2" = For 20 ft to 30 ft poles
7" = For 35 ft to 50 ft poles
14" = For 60 ft and higher
everything I bought is working fine. the shipping time was a little long but they were very helpful.