From local sewing factory liquidation. Triple binder attachment for industrial sewing machine. Each chamber has an air assist fitting. Stamp identified as 1 1/4" cut width. Finish width is not identified but the chamber exits are exactly 5/8". Designed for a very specific application I'm sure and the exit chambers are not evenly spaced. Good original condition. See my other listings for many more attachments and supplies from this massive liquidation.