Need to replace for 3 windows

Thanks for your photos. Based on what I see here, you have either our Series 351 or Series 390 depending on the depth of the bottom shoe. That's the only difference between them. I recommend measuring your shoe and referring to our dimensions to confirm the best match.

You also mentioned a cap, but I'm not sure what that might be. The best place to start with any part is photos, just like your balance. Seeing it removed from the window in undamaged condition will allow us to research a match.

Comparison of the S351 and S390 balance shoes.