Sea-Dog Stainless Top Insert - 7/8". Top Fittings create an attachment point and function as a pivot point as part of a Bimini top system. Pin size 1/4. Constructed of UV stabilized injection molded nylon. Available in black or white. Stainless tube wall thickness 0.049. Specifications for Sea-Dog Stainless Top Insert: Manufacturer: Sea-Dog Color: Black Fabric/Material: Stainless Steel Features of Sea-Dog Stainless Top Insert Investment Cast 316 Stainless Steel Tube Outside Dimensions: 7/8" Corrosion resistant to withstand harsh marine environments Quick and easy installation Package Contents: Sea-Dog Stainless Top Insert Sea-Dog 270180-1: Stainless Top Insert - 7/8"