Need New Balances

Thanks for posting. This looks like either an S380-31 or S385-31. The only difference between these two balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement. For the Series 380, the shoe depth is 1", while for the Series 385 the depth is 1-3/32". It looks like your shoe might slightly deeper than 1", in which case you'd want the Series 385; but reading pictures of measuring tape is not that reliable, so be sure to confirm yourself first. In either case, you will need a stamp option of 3030.