For this scarf I actually know what the yarn is. It is I Love This Yarn.Well, I don't know the exact color of the blue but the other one is white.
The hook is by Laurie Whitaker. It's a size I/5.5mm. The pattern is Bev's Conference Scarf.
It's about 62" long. I worked 10 rows of each color.
Happy crocheting!
Sandie