"Clip On Quilt Hooks thread on your quilt shock cord and clip on your hammock’s hem to keep your quilt in place. After you install your quilt simply clip the hook on your netless hammocks hem and rest with confidence it will stay on place all night. Sold individually, it is recommended that you use 4 per hammock. They come in white or black. These are for hammocks without a integrated bugnet. Designed and produced in the USA by Tato Gear."
The above wording is straight from Dutch, and his team.