No Rust Marine-grade 316 stainless steel provides excellent corrosion resistance. 316 stainless steel is more durable than other materials, such as iron, plastic, 304 stainless steel, etc. 360 Degree Adjustable Bimini deck hinges can swivel 360 degrees, including vertical mounts. Fits most bimini tops. The bimini top swivel deck hinge is attached to the top eye end of Bimini. Quick Release Easy to remove and install. Press the switch, and easily remove or install. Specifications: Material: stainless steel Color: silver Size: about 3.22 x 1.25 x 1.3 inch(Length x Width x Height) A distance between holes about 2.5 inches Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Package includes: 4 x Bimini Top Swivel hinge 8 x Screws