Check the listing for details. Open Water Conversion from Ice Setup - Livescope or Active Target - WOOSTER ONLY. Condition: New. Listed at 24.99 USD. Full Ice Fishing Setup listing is here: https://www.ebay.com/itm/334267790887 Looking for other sizes to fit 1" PVC or Summit pole? Here: https://www.ebay.com/itm/334741951993 Please read the FULL description before purchasing. This mount is designed specifically for using with Wooster Shurlock extendable paint pole ONLY. It may NOT fit any other pole of different diameter. The outside diameter of the pole is 32mm, or 1 1/4". For ice fishing I use the 2' extendable to 4' version. For open water, I use the 4' extendable to 8' version. If you have purchased my ice fishing setup for the Wooster pole, the mount only piece is all you need to convert to open water fishing on your boat. This mount allows you to easily mount to RAM C-size ball with round base (2.5" diameter base, RAM-202U). It also allows you to easily stow the pole in horizontal position during travel. Package Content: 1x Main Mounting Piece 4x Stainless Steel Machine Screws 2x Heavy Duty Clamp Rings with Hardware (Only included in Mount with Two Clamp Collars option) RAM mount is NOT included! Fits RAM-202U with C-size ball. Most RAM mount set comes with one arm, one mounting plate, and one round base. Instead of installing the round base on the boat floor or rail, swap it with the other end. So you are using the whatever size mounting plate on the boat and the round base attaching to this mount to hold the pole. Made and Shipped from Minnesota, USA