Made from #1 kiln-dried pressure treated pine or cedar, the 24 inch High back design offers the most comfortable style with smooth gliding range. Seat fully rolls at seat bottom has a taller  backrest for ultimate comfort with lumbar design that contours seat into backrest. Authentic  handmade craftmanship with quality construction highlighted with 1 inch thick slats attached with screws,  zinc plated hardware is rust and corrosion resistant.