This pattern uses a Super Bulky (#6) yarn and has instructions for a 36, 40, or 41 peg x-large gauge round hat loom.

Knifty Knitter: Green or Yellow Loom
Loops & Threads: Orange or Pink
Classic Knit: Green or Lavender
Boye: Orange or Pink
Martha Stewart: 36 or 40 Pink pegs in every other hole

This patterns assumes knowledge of the following:

Knit Stitch (traditional knit stitch)
Purl Stitch
E-wrap Knit Stitch