MULTIPURPOSE PLASTIC ACCESS DOOR: Provides a service area for electrical, security systems, telephone, TV, computer cables, plumbing, and sprinkler system applications MATERIAL: High-impact ABS plastic with UV stabilizers ROUGH OPENING Should Be 4-1/4" x 4-1/4", Attach To Wall Surface Using Caulking Adhesive To Back Of Door SELF-CONTAINED access panel; requires no framing, screws, latches or fasteners Our 4" x 4" Wallo ADP-0404 Plastic Access Door is designed to make it easy to get into walls and ceilings when you need to. It's made of strong ABS plastic with UV protection, so it won't fade or rust over time. The door can be taken off completely, and it fits tightly into the frame with snap latches to keep it secure. It comes in white with a textured finish, which you can leave as it is or paint to match your walls. Installing it is simple – just use some caulking adhesive on the back of the frame and press it into place.