Stealth Access Panels from Wind-lock are the leading glass fiber reinforced gypsum (GFRG) hidden ceiling panel specified for residential and commercial applications where discreet, concealed access is desired. Showcase your space, not your access panel with a lightweight, tapered edge design that blends in seamlessly. Stealth Access Panels are rust-free, resistant to shrinking and cracking, and easily textured. Choose from a variety of access opening sizes. Sold 2 access panels per box.