Widely use: The waterproof box works with bullet camera(You can drill holes on the plate to match your camera base's hole). Item dimension: Outside diameter of our junction box round: 3.94 inch, plate center hole: 0.98 inch, Height of aluminum box: 1.96 inch Material: Heavy aluminum construction, waterproof and stable, it will ensures durable and stable performance. Easy install: With professional design, Fits both wall and ceiling mount installation, just drill holes on the walls and install where you want. Hide your cables: Rear/Bottom access to pass cabling through. Perfect for hiding cables and connectors. Easy operation and maintenance, it's a good choice protect your cables. Colour:white Material:Aluminum alloy Size:10 x 10 x 5cm Package Contents: 12 x junction box Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.