FELLOWES MFG. CO.-BACKREST,CLIMATE,SLMLN,BK. Climate Contol Back Rest, 14 1/2w x 3d x 13 5/8h, Black. Personalize workspace comfort with temperature control and back support. Gel lumbar pack conforms to individual users for flexible back support. Gel pack heats up in microwave or chills in refrigerator. Contemporary styling with soft touch fabric. Adjustable strap with buckle fits most modern office chairs. Back Support Type: Chair; Material(s): N/A; Width: 14 1/2 in; Depth: 3 in.