Ergonomic and User-Friendly Design : Thumb-guided sliding sewing rulers for fatigue-free control during sewing, hemming, or crafting. Edge sewing tool is snug fit on the thumb enhances stability and maneuverability. Compact and mini size for easy handling (functions as a "sewing finger ruler"). Precision Stitch Control : Achieve surgical-grade accuracy with our laser-engraved 4mm scale seam gauge ruler, ensuring uniform stitches on straight lines, curved seams, and decorative patterns. Lightweight Yet Durable : Made from high-quality, rugged plastic - this edge sewing lockranding tool is built to last through years of use as a quilting ruler, DIY stitching guide, or seam guide ruler without fatigue. Friendly with Thumb Guide Design : Designed for both beginners and experienced sewists, the easy-to-handle thumb guide helps you control your seam allowance effortlessly during hand or machine sewing. Versatile Seam Mastery : Perfect as a hem gauge for sewing garments, a quilting measurement tool for precise stitch spacing, or a multi-purpose sewing gauge sewing measuring tool for crafts and curved seams. 4 Pcs Edge Stitch Lock and Sewing Gauge, 4mm Edge Sewing Lockranding Tool ，Sewings Templates Rulers，Consistent acd Decorative Stitches， Needle Gauge Quilting Ruler Measuring Tool， Seam for Straight