We offer five styles of studs: gold anodized 2024 aluminum for 200H blowers, and black anodized 7075 aluminum for the 206 series blowers, and high strength "superstuds" for excess vibration situations (7075 is stronger than 2024, and is a better choice for the higher-boost 206 blowers). All styles feature a radiused breakaway section that makes them easier to extract if the break as a result of a backfire. Longer versions are available for use with intercoolers.