b'Optional FeaturesThe following are optional extras to the range.Polished WhiteSpider Base Spider Baseadd 60 add 44Mesh Colours AvailableSCW442 SCW440HIGH BACK WITHHIGH BACKBLACK GREY WHITE BLUEHEIGHT ADJUSTABLE ARMSWITHOUT ARMSSYNCHRO MECHANISMRED GREEN ORANGE25 www.airseating.co.uk'