I'm very happy to announce that our 8 gram carbon fiber race number mounts are ready to ship out! We've added a carbon plate to help strengthen the number so it won't move in the wind and an O-ring to help damper vibrations so that the number won't rotate while you're racing. Hope you all like our first carbon accessory. We've got a lot more in the works... In Predator fashion they are hand made in the USA. Dubbed the Razorback, you can purchase a Predator Carbon Number Holder in our store for $35 or call us at (323)418-2726 for more info.