This is a combined hinged roller and straight stop adjustable guide which can be adjusted in height and raised up when not in use. This guide is especially designed to attached to the upper body of the sewing machine so that it would not interfere with the movement of the material on the flat bed. It is useful for sewing on thick leather or other heavy materials. It allows you to precisely sew on delicate corner. This item can work with Consew 206RB-5, 206RBL-18, 206RBL-25