Re: 3/8 Spiral balance

I am afraid we do not carry this type of balance cover for spiral balances. They're too specific to the windows they're made for, for us to stock them. A local hardware store may be able to better assist you. Note that not having them shouldn't affect your balance's function in any way, but if you do want them, whoever supplied or manufactured the windows would be your best bet. I apologize we can't do more, and thanks for reaching out.