Craftsman-built frames are constructed using solid, reinforced hardwood for lasting strength and stability. Frame support system features no-sag springs made from recycled steel sustained by flexible elastic webbing. Seat cushions contain dense foam made from partially plant-based material, padded with poly fibers. Backrests are filled with a supportive blend of foam and poly fibers and back frame system is sustained by flexible elastic webbing. Solid steel swivel base provides 360-degree rotation. Side lever enables various degrees of reclining. Please allow 2'-3' of clearance to properly recline.