Repeat these two pattern rows 10 more times for a total of 22 pattern rows.
Bind off, leaving a long tail of one of the strands for sewing.
Sew together the cast on edge to the bound off edge, which will create a tube.
Then draw the yarn through the stitches at one end of the tube, and pull tight to gather.
Draw yarn through the stitches on the other end of the tube, and pull tight to gather. Tie a small knot to finish, and weave in the end.
You can also try going up or down a needle size to get the size scrubby you like best.Other scrubby yarns or cotton yarns can be used for this pattern. For most other yarns you will probably want to use a single strand (no need to use 2 strands held together).