The specially designed rollers of this attachment pinch and seal the filling into Ravioli pockets. Attachment has two rollers; a plastic roller for the stuffing and a nickel-plated steel roller for the backing. Filling and rolling process is precise with smooth and easy manual operation. Creates two 2" square raviolis side by side at the same time. Attaches easily to most pasta machines. Wipe clean with a damp cloth.