The tightly woven, breathable elastic tape maintains 1mm thickness across various widths, offering recovery and softness that resists fraying during cutting or stitching, while the rustproof elastic drawstring threader clasp provide temporary fabric anchoring without damaging delicate fabric Use the 2inch width for sturdy backpack strap adjustments, the 1.4inch for swimsuit leg openings, the 1inch for dress shirring detail, and the 0.6inch for discreet lingerie elastic applications, supported by metal elastic string threader clip organization during complex sewing machine operate Upgrades your sewing project with this 4 rolls elastic sewing tape set, paired with 2 elastic drawstring threader clips, perfect for waistbands, swimwear, and sewing craft requiring flexible yet secure fabric integration This multi width elastic assortment caters to both professional apparel production and home sewing enthusiasts 5.5yard lengths per roll and varied widths eliminates measurement errors in bulk crafting, while the matte white finish ensures invisible understitching on light fabric