The Allstar Performance 8-Point Roll Bar Kit is designed for 1970-1981 GM F-Body vehicles (Chevrolet Camaro and Pontiac Firebird). It enhances both occupant safety and the car's structural integrity. The main hoops are custom-bent to precisely fit the car's design for an optimal fit. The kit uses 1-3/4" diameter steel tubing with a 0.134" wall thickness, offering a balance of strength and weight. Welding is required for installation. Floor plates, which are sold separately, are necessary for vehicles with unibody construction.