Material: Made of 316 Stainless Steel, surface polished.corrosion resistance and durable under seawater environment Widely use: For ships, inspection doors, decoy manhole covers, hatches, center console doors, pulley units and drawer units, and electrical enclosures. High Function:twisted round door latch, The active stop prevents the latch from disengaging when it is in the locked position. Convenience：easy to install without tools About us: We have our own factory that have nice service and high quality