Shakespeare GalaxyA(R) Style 5228 8' Heavy-duty Extension Mast- Reduced length versionConstructed of high-quality Shakespeare white fiberglass, and finished to match Galaxy antennas. This 1-1/2" diameter extension mast can be used to increase height of an antenna and thus improve effective range, or to boost placement of an antenna above on-board obstructions.IMPORTANT! If the combined length of your antenna and all extensions is more than 8', you MUST use an upper support bracketStainless steel upper and lower ferrules with standard 1" - 14 threadMount: A Style 409-R or 410-R Mounting Kit is requiredOne section, actual length 95"Shakespeare Limited Warranty: 5-Years