Features： 1、Standard Size: This 90° rectangular tube base has 1in through hole, 81.5 x 47mm base size and 43mm height, ensuring firm fixing. 2、Good Material: Forged with 316 stainless steel, the hand rail fitting has great durability against corrosion in the saline water. 3、Broad Utility: Allows for extensive application on ship, yacht, fibreglass boat, inflatable boat, other boat, sunshade and so on. 4、Great Process: Having been through accuracy polishing treatment on the surfaces, the tube fitting has mirror effect, very pretty. 5、Easy to Install: Comes with 7mm installation holes, the handrail base can be securely fastened by screws. Specification： Item Type: Boat Tube Base Material: 316 Stainless Steel Application: Can be used on ship, yacht, fibreglass boat, inflatable boat, other boat and sunshade. Through Hole Size: Φ25mm (1in) Base Aperture: Approx. 7mm / 0.28in Base Size: Approx. 81.5 x 47mm / 3.21 x 1.85in Product Height: Approx. 43mm / 1.69in Wall Thickness: Approx. 3mm / 0.12in Surface Treatment: Accuracy polishing. Package List： 1 x Boat Tube Base