If it is just two pieces of glass that roll or slide in tracking then you can go to Lowes and get a display case lock for around $6-7.00.
it is sliding glass like that, and thats what i plan on doing. how do you cut glass?

Might want to consider rats instead of mice, they are better for your snake. Just get a rat that is equal in girth to the widest point on your snake.
the boas at alex hue are on mice right now so im gonna pick some up so i can make the transition in case the boa wont take the rat. rex also needs to be switched to rats, but im waiting for him to build up to small rats, as i have heard feeding mice to a young snake is a good idea.

You might want to skip the astro turf as a substrate too. It is hard to get a tank to hold humidity with that stuff and every time one spot is soiled you have to pull the whole peice out and clean it. You could try news paper or cypress mulch as an alternative.
i have astroturf in rexs cage and have no problem. my humidity stays around 55-60% and rex has had perfect sheds both times with me


judy, i know what type of lock your talking about. once i get the cage (hopefully tues) im gonna make a list of things that needs to be done to it. after my boa grows out of it, i plan on putting rex in there. thx for the help guys, ill keep ya updated