S7-B household special coating high and low presser foot set + Bernina sewing machine adapter

The special coating greatly reduces the friction with the fabric and increases the smoothness during sewing. ★S7-B high and low presser foot (special coating) Specifications: 1.0mm, 2.0mm, 3.0mm, 5.0mm, 7.0mm five sizes ✍️The special coating is...? ✔SED Pigeon’s Nest is exclusively developed ✔Suitable for sewing imitation leather, leather, waterproof cloth and other fabrics ✔Significantly reduce the friction between the presser foot and the fabric ✔Sewing thin fabrics is not easy to wrinkle or cause scratches ✔Sewing smoothly without applying oil to avoid fabric stains