Non-Tilt 9/16" channel balance

Thanks for posting! It appears you have either our S380-27 or our S385-27 with a 2640 stamp. I am unable to tell from your photos weather your shoe is 1" or larger than that. So you'll need to double check the measurements to confirm.

Take a look at the diagram below to confirm which series you have.

Comparison of the S378, S380 and S385 balance shoes.