27" long (the metal frame only)

Hi there!

Thank you for reaching out to us. We're happy to look into this. Can you measure the bottom shoe as shown below? We would also like to see an image of the inside of the balance’s metal channel, where the innerspring connects to the pulley mechanism; this connection is located in the middle of the channel. If the balance is damaged, you'll have to use an undamaged version as a reference. 

Profile view of a winged balance attachment