Thank you for viewing! This product is for installing your speakers, surveillance cameras, and projectors on ceiling duct rails and lighting rails. By attaching it to devices with a 1/4 inch screw hole (tripod screw hole) (within 2kg), you can easily install it without tools. It is a long type with a total length of approximately 140mm, and has a ball at the tip. You can loosen the screw and adjust the angle 360 degrees, making it ideal for projector installation. *A separate power plug is required. 〈Product Contents〉 ・Duct rail mounting fixer body × 1 ▲Caution▲ A power plug is required to power the device. Please confirm that the connected device has a 1/4 inch screw hole before purchasing. Condition New, unused If you have any questions, please feel free to contact us. We have set a very affordable price. Please consider it. Immediate purchase is welcome. #DuctRail #LightingRail #LightingEquipment #Lighting #Interior #DIY #RoomMakeover #CeilingPlug #NewLife #RentalInterior #EasyInstallation #ConvenientGoods #NoElectricalWorkRequired #ProjectorInstallation #ProjectorMount #Mount #CeilingMount #MountBracket #360Degrees #Rotation #AngleAdjustment #1/4InchScrew #CameraScrew #WeightCapacity5kg #Attachment #Holder #MetalFitting #SpeakerInstallation #ProjectorInstallation #SurveillanceCamera #SecurityCamera #Camera #HomeTheater #Audio #SmartHome #Gadget #SpaceUtilization #BOSESOUNDLINKREVOLVE #SONYSRSXB501G #AmazonEcho #AnkerNebulaVegaPortable #XGIMIMOGO #MOGOPRO #Tapo