The SeaSucker SUP Rod Holder features a Scotty Rocket Launcher so it can be adjusted in all directions. The powerful 6" vacuum mount attaches to your board, kayak, or other boat. The platform for this rod holder has three support feet to stabilize the rod holder against lateral pull.• Powered by a powerful 210-lb. pull-strength rated 6" vacuum mount• Internal Rod Holder: 1-5/8" dia.• Measures 9"W x 20"H Three support feet help stabilize the rod holder against lateral pull 1-5/8"" I.D. Measures 9""W x 20""H