hopefully you know how to help me???

So I pulled out the crawler wheels i got from wheelersoffroad and noticed that they do not have valve stems, jsut empty holes....so how do I go about fixing this? I'm sure it is simple but ive never done something like this...i'm sure you guys got the knowledge on the subject so dont be afraid to shout out

 

Sorry. pretty much wasted this post. the guy at the shop was luckily still there and schooled me up on the very simple and basic process that i was ignorant of My nextr question is should i go steel or rubber. and will it be easy for me to get my tpms to work with these wheels and how much might it cost?

 

idk about the valve stem, but i have these wheels and they put my tpms sensors in without a problem. in fact i didnt even tell them to cause i was gonna ditch them but they swapped them out for me anyway.

 

"They" as in toyota or the shop that did your wheels...either way that is good news for me. thanks man