All our aluminium tent poles are made with hard structural aluminium which is anodised to protect it from harsh and salty enviroments. No blackening of canvas products or hands, means it is ideal for use in camper trailers and caravans or under a tarpaulin. All plastic componentry are UV treated to last longer in the sun, and nuts and bolts are Stainless Steel for longer life. Spigot pins are made from Hi-Tensile 8mm stainless for superior strength. The poles are ideal for the weight conscious camper.