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. Step comes in black only.Series Breakdown:Z Series:Z521 . 198VX . Z518D . Z518S . Z519D . Z519S . Z520 . Z520S . Z521D . Z521S . Z522 . Z522S 6 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.