Floorunner end caps

on my px disc i need to remove the plastic end cap of one of  my floor runner how do you do this without damaging it ?is there a special knack as ive gently had a go but to no success.Thanks

i found that if you use a hammer and flathead screwdriver the you can get them off without damaging them too much. but then i got frustrated and cut the rest off lol. but try a hammer and screwdriver first. hope this helps [H]