Intriguing pattern. Knitting needles.

The number of stitches is a multiple of 6, 2 edge stitches
Row 1: all stitches knit
Row 2: all stitches purl
Row 3:
insert the needle into the next stitch from left to right, wrap its end with yarn from the ball three times, rotating the needle clockwise, then pull the needle with the three wraps to the front side. Repeat this until the end of the row.
Row 4:
transfer 6 stitches from the left needle to the right needle one by one, while dropping the wrapped yarn. Cross these 6 long stitches, i.e., insert the left needle into the 4th, 5th, and 6th stitches on the right needle and pull the 3 previous long stitches through them. Again place the remaining 3 long stitches from the right needle onto the left and, holding the stitches with the thumb of the left hand, purl all 6 stitches one by one. Repeat this until the end of the row.
Row 5: repeat the pattern starting from the 1st row.