The supporting part is made of hardened aluminium alloy - 7075 T6. The protector itself is casted on CNC injection press machine. The mixture contents glassy and carbon fiber - those guarantee the higher protection against the abrasion in case of crash. The set always includes 2 holders, fitting bolts and 2 protectors. The protectors are available in black, red, blue, yellow, white and in green colour or in polished aluminium. Holders color : clear aluminium or hard black anodization.PP Tuning offers also aluminium protectors with hook for bike's transport securing.