INVISIBLE Seam in Joining Granny Squares. Mattress stitch tutorial

When you sew granny squares or other crocheted or knitted squares together, the seam looks best when it is invisible. Here's how you do it! Mattress stitch tutorial.
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🟠 Join granny squares in the last round (short video): • Join granny squares on...
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🟠 How to crochet a basic granny square • Crochet Basic Granny S...
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