6’ Fiberglass Foam Filled Pole Category_Default Category Products Hydro Jetting Tools Vacuum Equipment These skis are made ½” Category_Default Category Products Manhole Tools Fiberglass Poles These skis are made ½” undersized in the smaller sizes to 15” and they 1” undersize form 15” to 18” and 2” undersized in the large diameter 22” and 24” so that they may ride up over any offset and allow for misalignment in the pipe These 6 fins are made of 3 16” thick steel with a nice transition angle to allow them to go over offsets and debris fields and in general rough and ugly pipe etc… It is fitted with aluminum male x female quick connect ends that are just a snap to put together You can keep going deeper the more you buy