SINGLE PACK. Motorcycle riders, bikers - do not ride without this absolute essential! Having this sticker on your helmet can make all the difference between getting or not getting quick and accurate care & attention. Made of durable Vinyl, this bold, red sticker instantly grabs attention specifying the blood group of the rider. It is laminated, water/fade/scratch resistant and made durable to last. Use it on your helmet or on the door/window of your car, or even your phone & laptop!