Sparex source: https://us.sparex.com/armrest-kit-both-rh-lh-individually-adjustable-to-suit-operator-151977.html Product: Armrest Kit, Both RH & LH, Individually Adjustable To Suit Operator - Sparex S.151977 SKU: S.151977 Listing note: Kit Fits S.135938 & S.135939 Sears Seats Reduces operator fatigue by increasing support and comfort while improving productivity Detail enrichment pending: OEM cross references, fitment, catalog pages, and full specifications.