Dimensions:
Using Size H Aluminum Crochet Hook (5.0mm) and 4Ply Knitting Yarn work 26 rounds to get a 15 inch pillow.

Materials:
Size H Aluminum Crochet Hook (5.0mm)
About 364yds of 4Ply Knitting Yarn in Blue for a 15 inch pillow.
About 200yds of 4Ply Knitting Yarn in White for a 15 inch pillow.
Fiber Fill (or your desired stuffing)
Stitch Marker (or small piece of contrasting yarn)
Yarn Needle to make the dent in the center of the pillow