Product Name : Conical DMC Insulator , Colour : Red, Package Content : 4 Pcs, Material : Porcelain (BMC,DMC,SMC), (Size: 4 x 4 x 3 cm, Thread Size : 8 mm),Usage/Application: Electric Control, Feature: Heat resistance, Industrial, These are very easy to install, The use of a modern polymer channel has also reduced the weight of our earth bars, making them lighter and easier to handle, Insulator is the special part to fix,install and insulat on communication, electric power, lightning protection, machinery, medical, wind energy, frequency conversion equipment,new energy vehicles (integrated chassis cabinets, locker, etc.)