Looking for the size of the bathroom tap valve

[cybersky]

My bathroom tap is dripping water, I want to change the tap valve, but I don't know the valve size, if somebody familiar with the type of tap, please tell me the valve size. Thank you in advanced.

 

[Ric2013]

You'll probably find if you unscrew those valve shields, the handles will come off with the shields and you'll find the valve bodies are fairly standard 1/2" size.

 

[cybersky]

You'll probably find if you unscrew those valve shields, the handles will come off with the shields and you'll find the valve bodies are fairly standard 1/2" size.

Thank you for the reply. I already fixed it. I bought 1/2" washer. here are some tools I used for changing the washer, hopefully can help other people.