Wise 8WD431AR-710 Helm Seat with Arm Rests, White Helm Chair with Padded Aluminum Arm Rests Injection Molded Plastic Frame High Compression Foam Padding Heavy-Duty 28 oz. UV and Mildew Treated Marine Grade Vinyl Seat Dimensions - Height: 20.25", Overall Width: 24.5", Cushion Width: 19.75", Width Inside Armrests: 17", Overall Depth: 20.5", Seat Depth: 17"