Tinksky Narrow Hem Presser Feet , 6mm + 4mm Snap-on Rolled Hem Narrrow Hem - 2pcs Color: Silver. Material: Stainless steel. Professional 6mm and 4mm roller hem presser. Special designed for low shank sewing machines Compatible with sewing machine such as Brother Janome Toyota New Singer etc. Easy to snap on and with high performance. Snaps onto the barcket on the machine, so you can use and change any snap on foot without using a screw driver.