"The DS18 Tube-Mounting Bracket For NXL-X and CF-X is the perfect solution for those seeking a sturdy and versatile mounting option for these DS18 wakeboard towers. Crafted with precision and expertise, this tower accessory provides a flat and stable base for both tower and non-tower applications. Made of die-cast Kirksite, an alloy of zinc with aluminum and copper additives, this speaker bracket ensures durability in harsh marine environments. Its UV-compliant marine-grade type guarantees resistance to sun exposure. With its pivoting connections, you can effortlessly point it in the direction you desire for an optimal sound experience. This glossy black bracket from DS18 offers a sleek and compact design that seamlessly integrates with your existing setup. 4.09""L x 2.12""W x 3.157""H. Tube-mounting bracket for marine audio applications Specially made for NXL-X and CF-X series towers Die-cast zinc/aluminum alloy construction 30 tilt"