Feature: 1. [Reinforced Design] The access panel features buckle style reinforced right angle design, using direct connector pieces for reinforcement at the joints, the structure is more stable. 2. [High Strength] Made with high strength gypsum board and thickened aluminum frame, this access door ensures durability, longevity, and robust performance. 3. [Versatile Ventilation Interface] This gypsum board access panel can act as a ventilation interface both indoors and outdoors, meeting various requirements. 4. [Wide Application] The gypsum board access door is ideal for various settings such as office buildings, shopping malls, clubs, hotels, hallways, kitchens, and more. 5. [Concealed Design] Adopting concealed installation method, this ceiling access panel delivers functional performances while maintaining an aesthetically pleasing appearance. Specification: Item Type: Access Panel Material: Aluminum Alloy, Gypsum. Package List: 1 x Gypsum Board 1 x Frame