Made of fiberglass; is light weight and durable. Made of two parts which can fit in the trunk. Can be installed and taken off in minutes and the design leans on the Le Mans hard top. Better air flow through the cockpit area of the car than a more enclosed soft or hard top. No blind spots when changing lanes. Protects you from a sudden rain - inside of the car is moist, but not drenched. Prevents stress on the windshield (like other do). Unique rear mounting using RAM mounts, that does not require permanent hard ware; does not even require one or two roll bars. Designed to be stable at high speed; 125 mph no problem. Two size options: Regular size for Factory Five, Superformance, and Backdraft cobra replicas. Longer, for Lone Star Cobra Replicas (+6"). Order with or without RAM mount parts. All include B size 1" RAM® rubber ball attached to underside of each half of top.