Stainless Steel Square Shape Base Long Neck Floor Wall Flange Component, Mount Terminal End Post Holder and Top Hand Rail, for Cable Railing Deck (For Terminal Square Posts) Marine Grade 316 - Excellent resistance to corrosion! This high quality component will give you the finishing touches you need for your cable railing deck Helps provide stability and support for your square stainless steel deck mounted posts Secures Square Pipe to Floor Heavy Duty Stainless Steel for Strength and Durability