- Ring Ruler Standard – Quilting Books Patterns and Notions
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Ring Ruler Standard

Ring Ruler Standard

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Koala Tools

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The world's first size adjustable circular ruler. Able to make circles from 3 to 6 inches in diameter. Has a conical design and flexible material that allows the user to adjust the size of the circle. Translucent material allows for clear visiblity and tracing along the inner profile. 

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