Need help please.

Thanks for contacting us. We can replace this balance, but it will have to be a special order. Can you just tell me how many of these you need? You said you have two regular windows, would that be 4?

For the smaller window, is the balance the same type? That is to say, are the nylon attachments and metal clip on the cord identical to the balance you're showing in your photos? That's an important detail. What is the stamp printed on it? Finally, how many of those did you need, just 2?