[Sturdy Material] Made of high-quality and durable ABS engineering plastics. It has excellent characteristics such as high strength, good toughness, anti-aging, anti-ultraviolet, and good heat resistance. Even if exposed to the sun for a long time, it is not easy to deform and become brittle. Excellent corrosion resistance makes it durable in rain and sea water environment. High impact resistance also allows it to be installed in exposed to heavy treads, such as ship decks.[Anti-Skid Design] Circular Non Inspection Hatch is designed with square concave-convex surface, which is non- and wear-resistant to prevent people from falling. It also gives people a luxurious visual effect and a pleasing feeling. Carefully polish and trim the edges, and not cut your hands.[Excellent Sealing Performance] Inside Round Non Inspection Hatch built with rubber sealing ring and thread make Boat Hatch Deck Plate have better sealing performance. Better waterproof and dust-proof effect.[Easy to install and use]This Detachable Round Deck Plate is easy to install, detachable design, no need for professional installation skills and complicated tools. Old equipment can be replaced directly. 180opening hatches, cover and chassis, allowing vertical or horizontal installation, and a range of applications. we intimately equip you with 6 pieces of screws, which are convenient to install and remove.[Wide Application] Boat Deck Plate can be used for inspection and maintenance ports of ships, yacht, , campers, etc. Tip: When installing the inspection hatch, please use silicone sealant on the surface of the hull or hatch(Not included)Colour: WhiteMaterial: ABSSize:Inner Diameter: 4 inches, Outer Diameter: 5.5 inches, Cutting Size: 4.4 inches.Package Contents:1 x deck coverOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: 1.Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 2616 hours Hope you have a pleasant shopping experience!