From the book:

This simple design is the best way to begin using the KB Sock Loom. You’ll be surprised at how easy it is!

Additional Yarn Information:
The book appears to only state the yarn requirement for one sock, not a pair. (218 yards)

Materials:

• KB Adjustable Sock Loom One - 5/16 inch gauge with metal pegs
• Knitting tool
• Tapestry needle
• (optional) two pieces of contrasting color yarn, each 10” long for closing toe.

Gauge:
7 stitches and 12 rounds = 1” in FS.