its just just a graphite re enforced .. means fiber glass or some kind..
im selling one its on the sellers forum. its a 12l4 used just once , with futaba s9602 high speed servo.and has crc a pink and purple tires. with crc dura shocks plus xxl fm 75mhz receiver.. speed 8 body. and a 3600 ib battery.. crc ride hieght specer. pdub bumper. for 140$ shipped..search it out " 12l4" on the seller forum. look for my id. i havent bump it since cause i was thinking of keeping it.