coil balance shoe for Polaris double hung vinyl windows

I need the coil balance shoe that looks just like your product code# 15-177.

The measurements are:
↕ 1.3 inches tall, ↔ looking from left to right front: 1.2 inches, depth (front to back) .09 inches.
Do you have these, if so, can you give me the part number to order? Thank you!