Creative Grids Non-Slip Storm at Sea Strip Ruler 16'' X 16'' 

The Creative Grids Storm at Sea Ruler has all the measurements needed to cut all the pieces for the Storm at Sea block in the most popular size - 16" x 16".
The design is made up of 3 sections:
a centre design measuring 8" x 8"
4 corner blocks of the same design measuring 4" x 4"
4 side units each with a long diamond shape set in a rectangle measuring 4" x 8".
With illustrated step by step instructions