Loom Mistake Rib using Knit Stitch & Purl Stitch

Photo shows Front (left) Back (right). Sample is made on 11 Pegs on the small blue KK Round Loom, Peg #1 & #11 are turning stitches; 2 strands of 8ply used.
Flat Panel
Multiple of 2+1 stitches
Row 1: (K2, P2) k1
Row 2: (K2, P2) k1
Converted from the Mistake Rib Stitch at knittingwisdom.com