how do you get them off? and if they aren't reusable what size should i use? and yes...i searched first...

REUSEABLE!!!!!!! lol

You should just be able to unscrw them. They are plastic though. Just hold the base, and use a plier to hold it while unscrewing. It'll come out. Then when it does you pull out the base. When you put it back in, pop the base back in and shove the screw part back in. Simple

...O_o...yeah...

and thanks...i probably should have posted awhile ago but i figured it out...