Each set of 8 tablets is made of authentic 3M. Before pasting, you must clean the attachment surface first. It is recommended to clean it with 10,000 bubbles. If necessary, use 3M swelling Binder. It is best to paste it when you do not use the car on weekends, try not to car moving within 48 hours (this product is suitable for any double-sided adhesive compound), the strong 3m nature will be revealed, and it will fit closely with the original car ~