See more beautiful knitting stitch patterns. This free detailed video tutorial demonstrates how to knit fabric with tubes made of plain stockinette. On the right side of a fabric there are raised tubes that can be made longer or shorter by changing the number of rows in pattern repeat. Thanks for watching! Stitch was made with Knitting needles 4 mm, and with yarn: 55% Cotton, 45% Poly Acryli, 160m/50g.