The product is a pack of 500, 6×9 inch, open end envelopes by Marspark, specifically designed for key drop off vehicle repair. The envelopes are white in color and are ideal for mailing and shipping purposes. With the dimensions of 6×9 inches, these envelopes provide a convenient and secure way to send keys or other small items for vehicle repair. The white color allows for easy labeling and tracking of the items being sent.