Descriptions:Made of ABS, durable for use, and easy to installAlso Dustproof, Anti-UV and Anti-corrosion performance; protect your instruments even under the adverse environment.Suitable for airport, subway station, button box, small terminal, signal chassis, sensor, measuring device, communication junction box and other equipment.Specification:Product Name: Junction BoxOuter Size: 125 x 80 x 26mm / 4.92 x 3.15 x 1.02inch (L*W*H)Inner Size: 119 x 70 x 24mm / 4.69 x 2.76 x 0.94inch (L*W*H)Screw Installation Diameter:2mm/0.08inchPackage Content:1 x Junction Box