Sea-Dog 17 Flag Pole With Rail Mount Flagpole Included The Sea-Dog Adjustable Flagpole is made of highly polished, heavy wall stainless steel tubing. The flag is attached to the flagpole using nylon penant mounts with stainless steel spring wire quick release clips which are designed to hold their shape after continued use. Both penant mounts can move either direction on the flagpole allowing flexibility in mounting various sizes of flags where the eyelets of the flag are less than the overall l