E-FiN, SUP Motorizing Kits, 
E-FiN standard SUP Motorizing Kit - Includes  1 E-FiN- , 1 Remote Control, 1 Battery, 1 Battery Charger, 1 Dry Bag 
E-FiN PRO SUP Motorizing Kit - Includes  1 E-FiN- , 2 Remote Controls, 2 Batteries, 1 Battery Charger, 1 Dry Bag 
Dolsey E-FiN, Electric SUP motorizing  kits will power SUPs to 5 mph, for up to 6 hours,
depending on user weight, water conditions, and type of Board. 
Even Use with SUP, Kayak, Mount  finbox into rigid wood or plastic Kayak via a surfboard center fin box install.  Mount in your fin in inflatable fin box that uses a standard SUP and surfboard fin.  If your inflatable has a slide in slot mount fin, you can purchase an aftermarket, glue on, standard fin box ( as seen in gif pics above. )   
E-FIN fits any longboard / rigid SUP center box.
 
Use for - Paddle assist / booster,  stand alone power, to help slow or weak paddlers keep up, or get thru strong currents. and to Tour or Fish.
The E-Fin can be adapted to a, kayak, canoe. or wave ski,
The Dolsey E-Fin is a game changer     Shipping $25 - lower 48 mainland states   More info