Products BaseRectangular Base Back Base Rail Fitting Rectangular 60° 556-21560-00 Item Number: 556-21560-00 Base Rail Fitting Rectangular 60° 7/8" You May Also Be Interested In Seat Base Swivel 256-06518-00 90° Rectangular Base 156-66041-00 Light 556-10755-12V 45° Round Base 156-66114-00