Wrap 4 sts: Insert RH ndl between 4th and 5th sts on LH needle and k1, drawing up a long loop, k4, slip 1 leg of long st over those 4 sts to wrap them.
Shown with a cast-on count of 15 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats