Some dummy alarm siren boxes are obviously fake as they have some unknown brand name on them or even have no name at all, so I chose Y-cam Dummy Alarm Siren Box because Y-cam actually make fully working alarm systems and the siren box appears similar to the genuine article. Whilst it is good that the manufacturers include screws and plugs for fitting, the only slight criticism would be that the wall plugs were smooth sided and did not have anti-rotational lugs hence, even with the correct size drill hole, when screwing into the plugs they rotated, preventing a tight fit being achieved. I replaced them with anti-rotational plugs and all was well.