Feature:1. One-piece stamped steel frame, strong support is fixed more tightly to avoid loosening.2. The plastic-sprayed insulator is anti-conductive, has high mechanical strength, is corrosion-resistant and is not easy to rust, and is self-extinguishing.3. Convenient installation, simpler and faster than traditional methods, saving time and worry-free.4. Using the jacking principle, turn the screws to make the of both ends longer, so that the prosthesis can be firmly fixed at both ends to prevent loosening and falling off.5. A large number, can meet your use and replacement needs, very practically.Specification:Item Type: 86mm Switch Box Repair Tool Material: Cold rolled steelPurpose: 86 line box repairerApplicable Socket Box: Approx. 86mm / 3.4in series socket box Package List:40 x Bracket40 x Screw