Used for mounting an electric motor to Native Watercraft Propel kayaks. AVAILABLE IN TWO SIZES: 14" : The Motor Mount is available with a 14″ Thwart Mount for the Slayer Propel 10, Ultimate FX Propel 13, Manta Ray Propel 12, Slayer Propel 12 LT, and Titan series. 20": The 20″ Thwart Mount is for use with the Slayer Propel 13.