KEARING 18" French Curve Ruler — Clear Plastic Sewing Pattern Tool with Sandwich-Printed Marks for Accurate Long Seamlines

KEARING's 18-inch clear French curve ruler is a sandwich-printed plastic vary-form tool designed for accurate sewing pattern curves like necklines, armholes, collars, cuffs and pockets. This transparent 18" vary-form curve ruler combines a large working edge with durable sandwich-printed markings so measurements stay readable through frequent use. It’s tailored for apparel pattern work, costume design and home sewing projects where smooth, repeatable curves matter. The clear plastic lets you align lines and fabric underneath without guessing, while the extra-large length covers longer seamlines common in modern and vintage garments.

How will this French curve improve my pattern drafting?

The KEARING French curve creates consistent, smooth curves that are difficult to draw freehand. Its range of radii and extended length help you match and shape seams more precisely across many garment types.

• 18" length spans long seamlines and pattern pieces without piecing templates together.
• Vary-form edges give multiple curvature options from shallow to deep arcs.
• Clear plastic lets you see pattern markings and grainlines beneath the ruler for exact placement.
• Sandwich-printed numbers won’t wear off with repeated tracing or washing.

What sewing and pattern tasks is it best suited for?

This ruler excels at shaping critical garment details where precision matters: necklines, collars, armholes, cuff and pocket outlines. It’s also helpful when altering or grading patterns to keep curves proportional.

• Draw and refine necklines and collar rolls with even curvature.
• Trace armholes and sleeve heads to improve fit and reduce puckering.
• Sketch pocket openings and flap shapes for balanced placement.
• Use when grading sizes to transfer curves smoothly between sizes.

Is this ruler durable and easy to read over time?

Yes — the measuring marks are sealed between two plastic layers so they resist rubbing off, and the rigid acrylic-like material keeps the edge straight for accurate lines. The transparency and printed scale remain legible even after heavy studio use.

• Sandwich-printed numerals protected from abrasion and solvent exposure.
• Rigid construction reduces bending and measurement errors.
• Large format reduces the need for overlapping smaller templates, preserving print clarity.
• Easy to clean from pins, chalk, pencil, or fabric dust without damaging the markings.

Who is this for: The KEARING 18" French Curve is designed for sewing students, independent tailors, costume makers, fashion designers and dedicated DIY sewists who want a reliable, long-lasting tool for drafting smooth curves. If you work with pattern drafting, garment alterations, grading or costume construction and need a versatile curve tool that keeps its markings, this ruler will streamline your workflow while improving the accuracy and finish of curved seams.

FAQ

Q: Are the measurement marks permanent?

A: Yes — the numbers are sandwich-printed between plastic layers to resist rubbing off.

Q: Can I use this for both men’s and women’s patterns?

A: Absolutely — the vary-form curves suit a wide range of neckline, armhole and pocket shapes for any gender.