Roloff Side Bracket 2in. Quick and easy installation. Refer to manufacturer recommendations and guidelines to ensure a proper fit.. Features of Roloff DB-600 Side Bracket 2in Side Bracket - 2". 2" I.D. x 2.375 O.D Constructed from quality durable materials Quick and easy installation Refer to manufacturer recommendations and guidelines to ensure a proper fit Package Contents: Roloff DB-600 Side Bracket 2in Roloff DB-600: Side Bracket 2in