vpn proxy service,proxy have introduced many.such as VPNPOP offer free VPN proxy servers,relakks offer free trial vpn proxy,Hotspot Shield offer vpn proxy service and so on!focus vpn like this vpn provider,they offer free trial vpn. as they say:
We provide a free 4 hour trial for you to decide if you like the service.
Please Note the free try account only allow HTTP and ICMP traffic.
This trial is exactly the same as having the paid for service however you will be limited to web browsing only and the speed of this will be limited to 128k.
This is sufficient to test accessibility of websites and browsing if you don’t mind the wait.

so there are only 128k speed and 4 hours to trail.this vpn is not recommended by proxy .
trial vpn reg:http://www.focusvpn.com/signup-trial.htm
focus web:http://www.focusvpn.com/
here is how to use vpn?