b'Optional FeaturesThe following are optional extras to the range.Lumbar SupportPolished Base Seat SlideInflatableInflatable Synchro add 60 add 32 Lumbar Seat Pad Mechanism add 30 add 42 withRatchet Back Adjustmentno oncostKA354 KA344 KA340EXTRA HIGH BACK WITH EXTRA HIGH BACK WITHEXTRA HIGH BACK HEADREST & MULTIFUNCTIONAL ARMS WITHOUT ARMS Inflatable FoldingX-4D ArmMemory XL Seat PadMULTIFUNCTIONAL ARMS Thorax Support & HeightPad Foam Seat580W x 520D add 30 Adjustableadd 25 add 55 add 75Arms31 www.airseating.co.uk add 50'