Trickstep: detachable 3 and 4-step models are made of mild steel square tubing, TIG welded for solid integrity, and coated with Marine industry Tuff coat (black). Includes handrail, non-skid step pads, and all hardware for mounting.Series Breakdown:Z Series:Z520 . Z518D . Z518S . Z518ID . Z518IS . Z519 . Z519D . Z519S . Z520D . Z520S . Z521 . Z521D . Z521S . Z522Z 5 Series:
522S6 Series (4 Step Model):618T . 619DVS . 619SVS . 620DVS . 620SVS . 620T . 621DVS . 621SVS Disclaimer: RANGER® is a trademark of White River Marine Group, LLC. This product is not produced by, sponsored by, or otherwise affiliated with White River Marine Group, LLC.