Stranded knitting colourwork
Two yarns travel around the same row; the unused yarn floats behind the active stitches.
Counted practice swatch
Cast on 24 and join in the round. Colour repeat: 2 A, 2 B.
Work the repeat
Round 1–2: [k2 A, k2 B] 6 times. Rounds 3–4: [k2 B, k2 A] 6 times. Spread the worked stitches on the right needle before making each float.
Read the fabric
This sample has floats only two stitches long. Larger motifs need occasional float catches; test the tube width because tight floats reduce its circumference.