Forespar offers these Lexan Pole End Fittings as replacements for Forespar's telescoping, twist-lock poles. They are extremely lightweight and corrosion-free.
The kit includes the jawed pole end and the spike end. The outer and inner diameters of the pole end are 1 in. (25mm) and 7/8 in. (22mm), respectively, and it has an exposed length of 1 7/8 in. (48mm). The spike end has an outer and inner diameter of 7/8 in. (22mm) and 11/16 in. (17.5mm), respectively, and has an exposed length of 1 7/8 in. (48mm).