The first is a Battery Cartridge System for the ParkZone Sport Cub. It incorporates multiple positions for your battery on a shuttle/rack for easy in and out installation of your favorite battery pack for this fantastic aircraft.
The kit will arrive ready to glue together with regular CA or Epoxy. Using CA and kicker makes for a faster building of the kit or epoxy if that's what you prefer.
ParkZone Sport Cub Parts A.K.A. Small Wooden Contraption (SWC)
ParkZone Sport Cub Battery Cartridge (Extra Cartridge) $12.95ea.
ParkZone Sport Cub Battery Cartridge System (Includes one Cartridge) $18.95ea.