"Each clamp in the Bazooka Fixed Roll Bar Clamps 2-Pack lets you easily attach your Party Bar, Power Rail, LED light bars, or any other accessory that you want to attach to your roll bar or wake tower. Powder-coated, solid-aluminum-cast clamps ensure marine-grade durability. Includes mounting hardware necessary for a snug fit. Attaches a wide variety of accessories Fit roll bars and wake towers 1.75"" dia. Powder-coated, solid-aluminum-cast clamps"