Can anyone tell me if these security post that are fitted on drives are any good, if so which type,also who fitted them?
Thank you very much.

I don't know of any companies recruiting at the moment.

do you mean the ones that sit in middle of opening and fold flat to get car out? i have been recommended them but if someone gonna steal your car they dont care what damage is done and they are easily knocked over

http://www.barriersdirect.co.uk/