This cupholder uses 3 rubber grippers to better retain your drink and prevent it from rattling or moving within the cupholder. the cup holder requires a 3-5/8″ hole be drilled for installation, and has an installed diameter of 4-3/4″.
QTY 1 – Captive cupholder
QTY 3 – No. 8 self-tapping screws
We recommend upgrading from the included self-tapping screws to nuts and bolts if you are installing this product in an aluminum boat.