Feature:1. [Adjustable Width] The double guide stitch ruler allows for adjustment of left and right widths, meeting various sewing needs, whether for right side or left side stitching.2. [Stainless Steel Construction] Crafted from premium stainless steel, this double guide stitch ruler is strong and sturdy, finely processed, smoothly without burrs, ensuring longevity.3. [Simple Installation] The double guide stitch ruler is easy to install on sewing machines without complex steps, allowing for convenient width adjustment during use.4. [Consistent Stitching] Align the guide with the presser foot side to get a seam, suitable for seamstress or projects requiring uniform stitching.5. [Universal Compatibility] This stitch ruler is suitable for lockstitch, computerized lockstitch, old style foot operated sewing machine, easy to carry and store.Specification:Item Type: Lockstitch Double Guide Stitch RulerMaterial: Stainless Steel Applicable: Universal for lockstitch, computerized lockstitch, old style foot operated sewing machine .Package List:3 x Lockstitch Double Guide Stitch Ruler Parts