New Industrial and Professional Sewing Machine Presser Foot One-Touch Clip An attachment that allows you to change presser feet without a screwdriver. Recommended for those who use multiple presser feet or frequently change presser feet. I bought it from an online sewing machine shop, but I couldn't use it properly, so please someone who can use it, please. You can find instructions on how to use it by searching for the product name in the title. Shipping will be by regular mail. I am selling it at a low price, so please refrain from returns.