Features: Premium ABS construction ensures durability against impacts, corrosions, sun exposure, and harsh marine environments, featuring a 6inch waterproof seal for moisture/dust protections. The transparent removable cover enables instantly visual inspection of engine components,oil lines, electrical systems, and storage compartments without full disassembly. Ideal for boat owners, campers enthusiasts, and outdoor adventurers requiring secure yet accessible storage solution in marine vessels, campers, or garden toolboxes. Optimizes maintenance workflows on yachts, fishing boats, and land vehicles while serving as a weatherproof observation portals for industrial equipment or outdoor utility boxes. Reinforced ABS edges and compression lock mechanism to maintain airtights integrity during extreme temperature fluctuations and prolonged saltwater exposure. Specifications: Component: ABS Diameter:152.5mm/6'' Package Includes: 1Piece Boat Hatches Cover note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.