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What Does ptbl Mean in Knitting?

ptbl means purl through the back loop.

Purl Through Back Loop · Techniques

Purl Through Back Loop explained

Purl into the back of the stitch instead of the front, twisting it. The purl-side counterpart to ktbl.

How you might see it written

Patterns aren't always consistent. ptbl may also appear as p tbl, p1 tbl, p1tbl, or PTBL. The converter recognizes all of these.

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