These are two, 200 yard (3.2 oz) skeins of lace weight, two ply grade one suri alpaca yarn - you can't get any softer or finer than this!  Perfect for open lacework patterns, this is the yarn that heirlooms are made from.

What can you expect from suri yarns? (courtesy of the Suri Network)

Fine suri yarn is a beautiful lustrous yarn, like cashmere in its softness and silk in its drape and luster. It takes color as beautifully as silk or kid mohair.

 
What are the properties of suri yarn?

Its drape and weight make it perfect for garments that drape rather than cling, and even fine and open work garments are warm.  While it is not as elastic as wool, it is  more elastic than silk, cotton or bamboo. Suri blocks and holds its shape, and is resilient if it is not made of heavy yarn and not knit loosely.

How do I use my fine suri yarn? How do I find patterns?

Suri, with its fine, lustrous, consistent handle and staple length is a luxury fiber. This yarn is ideally suited to shawls and scarves but also lace sweaters, christening bonnets and dresses, and wedding veils. Whether spun in a fine lace weight (250 yds/oz) or a light fingering (75 – 100 yds.oz) it should adapt easily to patterns for such garments. Attention to needle size is important: go down a needle size or two from a pattern created for wool, and always check gauge! Patterns for silk and fine cotton should behave much the same as suri as these yarns do not have the elasticity of wool. Patterns for huacaya fall somewhere in between — not as elastic as wool, not as silky as suri or silk. So again, check the gauge.