Oversized Sweater, Hand Knit Tunic in black and white circural knitting

 Circular knitting or knitting in the round is a form of knitting that creates a seamless tube. Work in the round is begun by casting on stitches as for flat knitting but then joining the ends of that row of stitches to form a circle. Knitting is worked in rounds (the equivalent of the rows in flat knitting), which forms the tube by winding around in a helix.Originally, circular knitting was done using a set of four or five double-pointed needles.

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