Guitar playing help

Not trying to sound retarded... but can someone tell me what the things guitar players put on there fingers to slide up and down the fret board is called? Thanx =]

a SLIDE is somthing that you put on one of your fingers...u mean that...it can b made out of metal or glass or ceramic...u can buy them or make them urself...I don't know if your talkin bout this but yeah hope it helped

a Slide
haha
like gat506 said they can be made of metal, glass, or ceramic

if you dont want to buy one, you can use other things like:

beer bottle
shot glass
metal pipe