1.These adjustable cable connectors are suitable for indoor and outdoor, such as conduits to outlet boxes, HVAC equipment,Machine tools,Marine equipment,Motors & controls,Printing equipment,Pumps,Refrigeration equipment,Assemblies,Wire hook-up,pool and spa equipment motors, central air-conditioning units and various other electrical enclosures and hubs. 2.The electrical conduit connector, Cable range:3—8/6—10/7—12/12—18/18—25mm;Thread length:9/10/10/15/17mm;Thread OD:13/16/21/26/33mm;Length:30mm,40mm,40mm,50mm,50mm;Material: Nylon;;Color:Grey;In the package of:52Pcs x Cable Conduit Fittings. 3.The liquid tight connectors are made of Nylon,which are rust and corrosion resistant and protect the cable Not easy to deform,Sturdy for long term use;Each connector comes with a sealing washer dome nut. It not only effectively prevents liquid leakage in the flexible conduit, but also also waterproof. 4.Steps of installation:1. Loose the dome nut;2. Insert the conduit to the body;3. Tighten the dome nut;4. Connect the other end if needed.