"(1) Set includes two pieces and one micro carabiner
 
Tarp skins are a popular alternative way to pack up your tarp, the sleeves stay attached to the tarp and simply slide to the far ends when tarp is in use, when done simply slide the skins back over the tarp and guyline for easy packing. Comes with one micro-biner to clip the ends of your tarp together to keep the skins from sliding off when packed."
 
The above wording is straight from Brandon, and his team at Warbonnet Outdoors.
 
Fabric: 1.1oz/30D Nylon
Colour: Brown
Weight: 68g
Weight includes one micro-carabiner
 
Compatible with Superfly, Mountainfly, Thunderfly, Cloudburst, Mamajamba and Minifly.  Whilst servicing most other 11′ Tarps
 
View the full product details on the Warbonnet Outdoor website.