Model No.: ZB1901 Brand Name: richwits Material: Stainless Steel 316 Technique: investment casting Surface Treatment:: Mirror polishing Type: DRAIN PLUG Size: 1/2 inchesModel No.: The surface is mirror polished . Good material and excellent polishing quality make it has good performance on anti-rust and corrosion resistance . The black black rubber washer between the cap and drain plug body makes the sealing performance better. Zhibo is a professional manufacturer of stainless steel marine hardware and rigging hardware. In our factory , you can get anchors, hinges , deck fillers, fishing rod holders , eye plates , eye botls, shackles , turnbuckles, thimbles, carabiners and soon. Most of them can be supplied from stock. Low MOQ is acceptable. Contact us now for more details!