The Vertical Blind Square Valance Return Corner Adapter is a clear plastic accessory designed for mounting valances. This rectangular-shaped adapter, measuring 3.75 inches x 3.75 inches, is suitable for outside mount installation. With a manual operation mode and clear color, this product is ideal for adding a finishing touch to your window treatments. Made from durable plastic, this valance clip ensures easy maintenance with spot clean only product care instructions. Fits industry standard 3.5” vanes for dust cover valance