Sea water corrosion is regarded as a “metal eating tiger. Most of the foot spikes and rubber feet screws on the market are made of stainless steel or aluminium alloy. When photographers shoot sea views, these parts are usually immersed in sea water, which will soon be corroded. Titanium alloy, which has the reputation of underwater metal, is the Nemesis of sea water corrosion. POSEIDON SERIES tripods foot spikes rubber feet screws and tube plugs are all made of titanium alloy tor sea water corrosion resistant.