Hat band

Hi I’ve just knitted a cloche hat in the round. I now need to knit the band,I’ve had several goes and can not work it out. The pattern says using 2dpn like straight needles cast on 18 stitches then round 1 p2 using a then k2 using b round 2k2 busing a then p2 using b it does not look like the picture can anyone help.

I’m not sure I understand what you typed out. Can you post a link?

It looks like you’re doing two color ribbing. So what doesn’t look like the picture - the colors or the stitches?

Definitely a link would help.