While building and balancing my hexacopter (and rebuilding it after learning crashes) I frequently move the radios. Note the white tabs under the radios. These are 3M Command adhesive strips. By using these removable strips I can simply pull the tab to remove the strip and relocate the radios as needed.
(Note also the copious amount of Velcro on other parts.)
Comments
I have the same in black ;)
The large strip ( 2 sizes ) can hold a 1800mah lipo