gravity boots

[crowie]

are gravity boots good. i was thinking of buying some to stretch out my spine. i have also heard that they can make you taller is this true.

[ctgblue]

They will NOT make you any taller, at least not noticeably.
They will allow you to decompress your spine, more in the lower back and decreasing towards the head.
I use them for this purpose and to do some crunches.
If you have never tried them, try them first. It can be a very disconcerting feeling being hung upside down. Some people cannot handle it very well and get a headache from it.
I use mine with my VKR chin /dip station and still feel like it will tip over, even though I know it won't.
Unless you have used them in the past and know that you like them, you can buy and inexpensive inversion table for less than boots and a chin station that will hold up to a 250lb person and get similar results.
I had the VKR first and knew I wanted the boots as I used them when younger. It is also a trick to get out of them so tie some kind of rope to the bar to pull yourself up until you can actually touch your toes (not likely for a while)