Replacing Injectors

[JTaylor2005]

Hi all,
Am I right in thinking that to replace the injectors on my car I need to find a set of these ones 0445110076 so they don't rattle.

Then I need to remove the fuel pipes. Pull the injectors out (Will I need a tool for this?) And then replace the copper washers and fit the new ones in?

Once it's all back in and connected they should just work shouldn't they?

Thanks, Jack