Aloha & Howzit Again!
IF you are in the early stages of "lifting wegihts" and have selected to do Squats and Deadlifts, you do not need a belt but a pair of eyes that can observe your physical performance and comment on what needs to be exercised on. It will help with your "inner-foundation."
Again the weight lifting belt has its time but for now, work with your body on your resistance exercises and when in doubt, avoid the exercise and seek help/advice. Educate yourself about both the exercise and The Exerciser - YOU.
The best piece of equipment to understand and learn is the use of your body. The more you understand, the better it will work and last for a long time.
Bad technique only come from Bad Mechanics right?
Please keep in mind that the infomation that is provided (mine's too) is only as good when you truly can understand and feel it work for you.
Where you live, you can surely find a "live" teacher to assist with your lifting.
Ask a lot of questions and always "Challenge The Knowledge."
I was fortunate my teachers allowed to share with me their insight of teaching the "health-in-exercise."
Oh, if you do have a unstable back condition, go get it check before doing compound resistance exercises.
You want to Build yourself up...NOT BEAT YOURSELF UP!
Good health to you & ALOHA for now...
mikey Q.