Set of 6 Magnetic Attachments for Smoke Detectors/Smooth Surfaces (Not Suitable for Woodchip Wallpaper/Loose Plaster) by TARGARIAN Mounting without tools: no screws, no drilling, no holes! Easy to fit for Wireless Smoke Detectors, Smoke Alarms, Mains smoke alarms , Fire alarms Our magnet offers a real alternative to fastening with screw and dowels plugs Smoke alarms can be mounted quickly and cleanly with this magnetic assembly system Set of 6 Magnetic Attachments for Smoke Detectors/Smooth Surfaces (Not Suitable for Woodchip Wallpaper/Loose Plaster)