What is this?This junction box is widely applied in electronic projects, protecting power from water, and touching accidentally. It is suitable for circuit protection of outdoor lights.What will I get?The conduit box, we provide here, is in the size of: Inner Diameter: 20mm / 0.8 inch; Outer Diameter: 23mm / 0.9 inch; Total Size: 94 x 94 x 31mm / 3.7 x 3.7 x 1.2 inch (L*W*H)In the package of: 20 x PVC Conduit CouplerAre there any advantages of the product?Made of PVC material, the wire box is waterproof, corrosion resistant, and flame retardant. It can protect cables from being exposed to rain and dust.How to use it?Steps of installation: 1. Fix the junction box on the wall; 2. Pass the cables through the conduit; 3. Close the cover and tighten it with screws.