Premium Material: The Boat Hatch is made from premium pp, inspection hatch is designed to withstand the harsh marine environment, ensuring long term durability and reliabilityConvenient Access: Equipped with two rotatable handles, this deck hatch offers easy access to the compartment below, making inspections and maintenance tasks more efficientReinforced Design: Non slip surface, strong stability, good sealing, leakproof, and long service lifeWaterproof: Engineered with exceptional protect properties, this product effectively prevents rainwater and seawater from seeping into the cabinEasy Installation: Round Inspection Hatch Deck Plate with an outer diameter of 28.2cm/11.10inch and an inner diameter of 20.5cm/8.07inch, this hatch cover fits perfectly into a cut out size of 23.5cm/9.25inch, allowing for straightforward installation on your vesselSize Chart:Outer diameter 28.2cm/11.10inchInner diameter 20.5cm/8.07inchHole size 23.5cm/9.25inchPackage Includes:1Boat Deck PlateNote:Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.