The MightyMount Duo Rail Adapter was designed for use with the Hobie(R) H-Rail found on popular Hobie(R) products and 1" square tubing. The adapter creates a robust but simple two point attachment for t-bolt track mounted accessories. Common accessories used with the MightyMount Duo Rail Adapter are rod holders, camera mounts, fish finder mounts, cup holders, visibility flags, etc. This mount is compatible with YakAttack track mounted accessories, YakAttack accessories featuring the LockNLoad(TM) Mounting System, and track mounted accessories from other kayak accessory brands FEATURES: Compatible with the Hobie(R) H-Rail Includes all necessary hardware Aphillips head screw driver is required for the installation Included hardware is Xylan coated stainless steel Made from marine grade polymers Made in the USA