Make difficult jobs a breeze! Easily create the perfect professional sewing craft! After loosening the screw, you can move left and right to adjust the crimping width. Suitable for most common industrial sewing machines for Singer , for , for Gemsy, for , for , for , for Singer, for , for Tacsew, for , etc. mainly used for rolling hems, clothes, sheets, shirts, curtains, etc. Products of different sizes can be made without replacing crimping feet of different sizes, which is more practical.