I have applied velcro pile, the fuzzy part, to the floor of my Kadets. then used 3/8"velcro tape, its pile on one side and hooks on the other. You can reverse it either way, put the hook side out, then I can move the radio and battery fore and aft as needed. I also use this for weights 5,12,17grams respectively. for shifting CG when moving radio isnt an option.