Oracle ll glued joints with corner blocksMechanisms bolted to frame with t-boltsFive no-sag springs w/ tie wiresDelrin bushings on all mechanismsUpholstered on the handles and underneathPadding on sides and backs of all chairs for safetyOne year warranty against manufacturing defectsFive year warranty on mechanismsThree year warranty on foam and frame partsLeathers feature luxurious feel and design wrapped in foam and topped with blended down feathersHigh resilience 1.8 density seat foam for superior durability and comfortHardwood frames with mortise and tenon construction Frame Hardwood plywood frames with mortise and tenion construction ,glued joints with corner blocks Length 39.25 Height 42.5