All SEIBON Carbon Fiber Hood should be installed with Hood Pins. Although SEIBON Hoods do bolt-on, it is recommended that vehicles that will be used on street or racing circuits use Hood Pins for additional safety. All SEIBON Carbon Fiber Products are: * Hand Laid * ˜Wetï¾' Carbon Fiber * Clear ˜Gelï¾' Coated from the Factory * Inspected Before Shipping