1/2" P-Clips for finger skirt attachment. These are commonly used on most models of finger skirt hovercraft, including SCAT.
On older craft, like SCAT's, the original P-Clips get brittle with age. Eventually you'll find the P-Clips breaking before the wire ties on your skirts. If this happens on the river and you don't have a toolbox on you with rivets, a rivet gun, a drill, and extra clips (which most people won't!) you're in for a long, slow trip home. New P-Clips rarely break, and they're easy to change in the garage (as opposed on the river!) so replace yours before it's an emergency!