They all share the same common frame

hence the name :)

Full Psycho-Frame Prototype Mobile Suit RX-0

Hale-lignende dele kan sættes fast på modellen flere steder

RG Strike Freedom Gundam 1/144 new mobile suit gundam wing series They all share the sameZ. A. F. T. Mobile Suit ZGMF X20A Real Grade Strike Freedom is the first RG kit with a frame molded in this gold color. Even the Dragoons are gold plated, which strikes you as soon as you unbox it. A fantastic model that, with its "wings" spread out, looks absolutely spectacular and formidable. In a potential glass display with light, everyone who passes by will surely stop and look. NOTE. If you want water slides for this kit, you can find them here