Smartmarine 6 inch Boat Hatch Cover Black Round Non Slip Inspection Hatch w/Detachable Cover 4" 6" 8" (6")

1).High Quality ➯ Solid ABS material. Weather-tight and O-ring sealed deck plates.Anti-corrosive;Ultraviolet resistant. 2).Apply to ➯ Suitable for all kinds of Boats/Yachts. Ideal for interior and exterior applications. 3).Features ➯ Non-Slip surface,reinforced design with a non-slip surface; 4/6/8 inch deck plate can be installed vertically and horizontally. 4).Installation ➯ Boat Deck hatch. Rotary witch.Separate cover plate and chassis, easy to install.Pre-drilled countersunk holes (screws included) 5).Dimensions ➯ Outside Dimensions: 7.7" (196mm) ; Inside Dimensions:6"(152mm). 6).Please check the size carefully before you buy them,we have 4/6/8 inch three size.Please feel free to ask us if you have any questions,we will reply you asap in 24 hours.