Wild Country's lightest nuts, they use a single wire from the loop to the nut to save extra weight. 

They have a slightly offset shape but are still quite square and due to the single wire are very stable in both directions.

They have a cool feature that any rock in the longer side is the same size as the size above meaning they are easy to work with and give you more usable sizes.

These would be a perfect way to double up on small nuts as they are so light and make a great companion to the Superlight Offset Rocks