What length are the W210 rear brake lines?

[DigitalArts]

Hello!

My father suggested getting brake lines with pre-cut to length with metric flanges and fittings, just to make sure it's proper. So long as the bill for the parts is under $50, I'm fine with this option.

That said, I need to order them a particular length and I'm not sure what length that is. These will be the rear two brake lines on a 99 e320 w210 chassis.

Any help is appreciated!