I'm new to rc flying and now having Apprentice i'd like to replace that plastic spinner, but i'm totally dumb in that direction.
Please help me to choose appropriate Prop Adapter and/or Alu Spinner (i lost my original spinner cup, so don't think it is ok to fly without any, and i don't know what to choose and why) from HobbyCity (i'm gonna buy some stuff from there, so could add spinner to save on shipping)

Thank you in advance