When you are sewing multiple layers of fabric, you want them to move through the machine at the same rate. Teeth on the bottom of a walking foot firmly feed the top fabric precisely as feed dogs move the bottom layer. There is no more shifting! Great for quilting or matching plaids. These are original feet. If you have the locking bar on your machine to remove your feet easily, you want this foot as it does NOT require an adapter. You will receive the even feed foot. If you need the screw, we can add one for $15 more. You will receive directions, but it is as simple as attaching any of your other super high shank Kenmore feet and then raising the fork on the even feed foot and screwing the fork into the slot on your machine which was made for this purpose. There may be some discoloration in the plastic housing due to age. Fits: Kenmore super high shank models, including (but not limited to): 158.1281#, 158.1350#, 158.1400#, 158.15810, 158.16030, 158.1625#, 158.16410, 158.16520, 158.16801, 158.16900, 158.17032, 158.1703#, 158.17033, 158.17140, 158.17600, 158.1780#, 158.17810, 158.17812, 158.17840, 158.17841, 158.17850, 158.17860, 158.17871, 158.17891, 158.179##, 158.17910, 158.17911, 158.17921, 158.17922, 158.18023, 158.1803#, 158.18033, 158.1813#, 158.18130, 158.1814#, 158.18800, 158.19130, 158.19131, 158.19140, 158.19141, 158.1917#, 158.19310, 158.1940#, 158.19411, 158.19412, 158.19471, 158.1974#, 158.19802