This Dual Feed Quilting Guide helps you stitch straighter lines, and is designed specifically for use with the MuVit(tm) Dual Feed Foot device (sku #SA196, available for separate purchase, and included in the XV8500D, VM6200D, VQ3000 and VQ2400). Included are a Right Guide and a Left Guide that are both adjustable up to 2 3/8″ from the center needle position.