Another type is a skirt mounted on a metal hinge. Metal hinges cannot be rotated like a burst motor, and must be wired to move. When lowered flat up against the ground, they can usually get under skirt hinge type wedges. | Another type is a skirt mounted on a metal hinge. Metal hinges cannot be rotated like a burst motor, and must be wired to move. When lowered flat up against the ground, they can usually get under skirt hinge type wedges. |