Feature: 1. Stainless Steel Construction: Boat porthole window is constructed with marine grade stainless steel for the entire frame and hinge, which ensures rust resistance and durability. Polished to a smooth finish. It can withstand harsh sea conditions. 2. Sturdy Tempered Glass: The 6mm thick, smoked tempered glass surface ensures toughness and safety. It filters out UV rays and allows light to enter the cabin, brightening the interior, and can also be used as a ventilation window. 3. Protection Net: Oval porthole window with fixed handle and net design provides a barrier against objects and can be used in storage compartments, living rooms, lounges, bathrooms or other locations. 4. 180° Internal Opening: Boat opening portlight supports 0‑180 degree opening angle, with the stainless steel hinge able to support it at any angle, allowing you to enjoy the view along the way. 5. Wide Applications: Hatch window is suitable for 26‑36mm/1.02‑1.42 inch thickness installation, perfect for boats, yachts, ships and RVs, etc. Provide solutions for your leaking, broken and unsatisfactory windows. Specification: Item Type: Boat Porthole Window Material: Stainless steel + tempered glass + ABS + rubber Switching Method: Internally open, includes stainless steel retaining clamp ring Window Dimensions: Approx. 560 x 250mm / 22.05 x 9.84in Installation Hole Size: Approx. 511 x 202mm / 20.12 x 7.95in (please allow a 2mm error for manual measurement) Suitable for Installation Thickness: Approx. 26-36mm / 1.02-1.42in Applicable to Boat, Yacht, Nautical, RV, it can be used for your ship, yacht, RV modification and installation projects, providing a solution for your water leakage, damage, and unsatisfactory windows. Package List: 1 x Boat Porthole Window1 x Fixing Frame