Brand Name: Monster | Color: WHITE | Number in Package: 5 pk | Packaging Type: Carded | Sub Brand: Just Hook It Up | UL Listed: Yes Just Hook it Up Blank Keystone Inserts to protect unused Keystone opening from dust and debris. These mount easily into a keystone wall plate. | Blank insert for keystone wall plate | Use to protect unused keystone opening from dust and debris | Mounts easily into a keystone wall plate