Heavy Duty Bumper Guides are constructed from extremely thick wall steel 1" tubing. Heavy chrome plating is applied after at least three polishing operations. 1. 42" Offset Pole TC42 2. 52" Offset Pole TC52 3. 42" Offset Pole MB42 4. 52" Straight Pole DM52 5. 42" Straight Pole DM42 Heavy Duty Bumper Adapters Chromed Heavy Duty Adapter AD135 Chromed Heavy Duty Adapter AD90 Chromed Heavy Duty Adapter AD180