1/2 Walking Foot Single Piping Foot Set S30/S31
The foot is designed for inserting 1/2 wide piping cord down the left side of the needle
If you need to guide your piping in the correct direction this foot will help you and make your sewing experience easier.
Also, sewing heavy fabric and upholstery will be easier.
These feet(Presser Foot) are compatible most flat-bed and cylinder arm and post bed walking foot needle feed industrial sewing machines that use the same style fitment.