Listed gauge should yield a blanket that is 32 inches across.

I used Bernat Softee Baby - one skein each of lilac and white (5oz/140g each) and one skein of pink/lilac/white variegated (4.25oz/120g).

The instructions are so easy and it can be worked in any thickness of yarn - just be aware that the thicker the yarn the larger the afghan - thinner yarn = smaller afghan.