First, you're nuts to buy anything from NitroPlanes (aka RaidenTech, Xheli, bananahobby, and about 20 other seudo named websites with the same phone number and street address in the City of Industry area of LA)! They ship broken, missing parts, defective, under-powered (many can't even do rolling take offs), barely fly, planes! I know, I've gotten ALL of the above from them in 5 different planes! (A-10, FW190, J3 Piper, ME109 and TWO balsa Ultimate Bipe (missing parts)). Yeah, I took too long to learn about them the hard way!
The foam planes they carry are brittle packing crate foam, which a hard landing with crack in half and snap wings. Most experienced RC'ers know to avoid NitroPlanes, et. al. like the plague .... or Swine Flu.
Take the warning seriously