Brother SA144 Snap-on Plastic Clearview Presser Foot with 1/4" Flat Tunnel Underneath for Satin Stitch & Applique up to 5mm Zigzag
 
Clear-view foot is used with any application where visibility of seams or pattern markings are desired for ease in embellishment as the foot is clear plastic. 

Features:

• For optimum visiblity while sewing.
• It is ideal for topstitching, with decorative stitch, patchwork piecing, etc.
• Compatible with VX, XL, XR series