This telescoping boarding ladder is made out of V4A stainless steel and is naturally resistant against seewater and ultraviolet radiation.It is able to stand in an 90° angle.The steps are gummed so there is a safe stand even at bad weather conditions. Because of it is a telescoping ladder it is easy to tuck. measurements: extended length:875mm retracted length:400mm width outside:285mm width inside: 220mm step:180x40mm diameter of the pipe:32mm length middle of the pipe -middle of the pipe:255mm