Castings are LM25 anodised, stove enamelled black texture. Tubes are 1” diameter x 16swg HE30TF alloy, polished and anodized, with nylon wipers and nylon locking pads. Stainless Steel spikes to feet, with rubber covers. Locking levers are anodized and stove enamelled black texture. All steel parts are hardened where necessary, and chrome plated.