[High-quality] Made of ABS material. IP67 waterproof rating to protect against dust, corrosion and splashing water.Sturdy and terrific for making those DIY projects. [Easy to Install]:Our waterproof electrical connector with the professional design and convenient connection, requires no welding, no cable cutting, just connect the same type of wire together, more convenient and safer. The cable connector can be installed in any place where needs. Ideal for repairing and extending cables. [Application] ：Easy to drill and shape openings for many items like meters, LCDs, sockets, LEDs, button,selectronic projects, instrument enclosure, power supply units, temperature controller box, etc.moisture proof, sunscreen, anti-corrosion, durable for years use. [Package Conten] :1 x Junction Box, 1 x Rubber Grommet, 4 x Screws,4 x M16 Cable Gland [ Size Info ] Overall outer dimension: 4.7" x 4.7" x 3.5"; Please refer to picture for specific data. good