1).High Quality ➯ Solid ABS material. Weather-tight and O-ring sealed deck plates.Anti-corrosive;Ultraviolet resistant.  
  
 2).Apply to ➯ This marine access hatch suitable for all kinds of Boats/Yachts. Ideal for interior and exterior applications.  
  
 3).Features ➯ Smooth surface,reinforced design with a non-slip surface;180°opening hatches, 4/6/8 inch deck plate.  
  
 4).Installation ➯ Deck mount Boat Deck Plate. Rotary witch.Separate cover plate and chassis, easy to install.Pre-drilled countersunk holes  
  
 5).Size ➯ 4 inch -Outside Dimension: 5.5" (141mm) ; Inside Dimension:4"(101.6mm) 6 inch -Outside Dimension: 7.7" (196mm) ; Inside Dimension:6"(152mm) 8 inch -Outside Dimension: 9.7" (245mm) ; Inside Dimension:8"(203mm)  
  
 6),Package ➯ 1X Boat Deck Hatch & Stainless Steel Screws included.