Shakespeare Galaxy® Style 5228 8' Heavy-duty Extension Mast- Reduced length version Constructed 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 bracket * Stainless steel upper and lower ferrules with standard 1' - 14 thread * Mount: A Style 409-R or 410-R Mounting Kit is required * One section, actual length 95' * Shakespeare Limited Warranty: 5-Years