3mm thick acrylic rigid plastic material. For use with a rotary cutter for cutting strips and marking angles.
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Buy Kearing Patchwork Quilting Ruler with Metal Edge 20/30/60cm Acrylic Plastic Ruler for Quilt Cutting & Measuring Sewing Supplies at Aliexpress for
Kearing Patchwork Quilting Ruler with Metal Edge 20/30/60cm Acrylic Plastic Ruler for Quilt Cutting & Measuring Sewing Supplies