The Ballast Bracket from Allstar Performance is designed for secure mounting on a 1.25-inch OD round tube. Crafted from high-quality aluminum with a sleek black anodized finish, this clamp-on bracket ensures durability and strength. Each bracket comes with 5/16" fasteners, featuring a 1/2"-13 tapped hole on each side, making it ideal for mounting ballast. Perfect for racing and automotive enthusiasts who demand reliability and performance.