The SS906 is Great Day"s basic 4-foot ATV boom, It mounts to ATV rear racks and feature spray nozzles set on 20"" centers, Our booms are multifunctional sprayers ideal for use around the farm and hunting site, Our other models include the SS907, our 10 ft, folding model and the SS909 which features spring hinged, swing-away booms that allow the end of the boom to move away when coming into contact with an obstacle preventing damage to the boom, Dimensions: 42"" x 7"" x 7"", SKU: GRDY098