Powerbass XL-SBCLAMP2 clamps for soundbar. These heavy-duty clamps offer a secure fit for roll bars on most categories of vehicles and boats. They are made of non-corrosive aluminum with powder coating for added protection. Compatible with XL-650, XL-850, XL-1250. Ideal for use with Version 2 Series soundbars, they fit waketower and roll bar diameters of 1.5″ – 2.75″. Includes stainless steel hardware.