Attwood Swivl-Eze 238333-1 Stainless Steel Square Boat Seat Pedestal Base This stainless steel boat seat pedestal is constructed for longevity in marine environments. This square boat seat base requires a 3 diameter mounting hole and has a 7 x 7 footprint. Product Features 7 x 7 Square Seat Mount Centered Hole Stainless Steel 3 Diameter Mounting Hole California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Pedestal Product MPN 238333-1 Prod