The cable glands passed safety and quality inspection. If you have any question about these strain relief ors cord grips, please contract us in your convenience, we will do our best to meet your satisfaction.The cable glands made of high-quality thermoplastic polymer (PBT), Heat resistant, Flame retardant; They protect wire cord/cable from ignition and keep electrical wiring in good condition.The cord grips belong to small items, pleas stay away from children, corrosion-resistant material, stay away from fire screw into cables tightly, making your living environment more comfortable and safety.cable glands perfectly fits for hanging Lights, pendant lights, ceiling lights, glass insulator lights for table-top and floor use as well as many other applications, include wiring fans and small appliances.cable glands could thread into the base of any standard light socket and when you screw on the cap, they tighten up onto your cord, holding the weight off of your wire ions inside your socket or ceiling canopy.