GLIDES OVER BULKY FABRICS WITH PRECISION: This hump jumper sewing tool levels your presser foot to eliminate skipped stitches on thick layers. A must-have among sewing tools and gadgets for reliable results in every stitch TWO HEIGHT OPTIONS FOR SMOOTH SEAM TRANSITIONS: Features 1/8" and 3/16" ends to handle fabric height shifts. Use it like a jean a ma jig or big jig on hems, zippers, and millinery supplies for greater stitching control and consistency EFFORTLESS SETUP FOR FASTER WORKFLOWS: Slides under your presser foot in seconds, correcting foot tilt with no shank adapter required. One of the most trusted sewing gadgets for improving accuracy and saving time on complex seams UNIVERSAL FIT FOR MOST BRANDS: Compatible with Brother, Janome, Singer, Kenmore, and Husqvarna Viking. This versatile piece belongs in every set of sewing foot attachments, ideal for garments, quilting, accessories, and crafting