Feature: high anti-corrossion and anti-rust, duable with high mirror polish High Polished and high strength marine grade stainless steel 316 cabin deck marine boat bimini top fitting set Easy to install, durable and corrosion resistant Multiple applications, such as marine boat, trucks, van, caravan, trailers Universal fit, suitable for both internal and exterior use,High mirror polished face for sleek appearance and to match today's modern watercraft Specification of Slide Cap: Hight: Approx 54.5mm Width: Approx 29mm and 31.5mm Bottome Hight: Approx 32mm Inner Hole Diameter: Approx 24.5mm Thickness of Connector: Approx 7mm Diameter of Connecting hole: Approx 6mm and 7mm Width of Connector: Approx 16mm Specification of Slide Sleeve: Hight: Approx 27.5mm Out Diameter: Approx 29.5mm and 32.5mm Inner Diameter: Approx 22.6mm and 25.6mm Connecting Screw Bolt: Approx M6 Inner Width of Connecting Jaw: Approx 8mm Fixing Hexagon screw: Approx M6 hinge Specification: Lenght: Approx 60mm Width: Approx 18.7mm Hight: Approx 36.5mm Thickness: Approx 5mm Diameter of Screw Hole: Approx 5mm Inner Width: Approx 8mm Diameter of Top Screw: Approx 5.8mm colour:Silver Material: Stainless Steel Size: 1 inch (25mm) Package Contents: 8 * slide caps 4 * slide sleeves 4 * Mount hinges Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.