Different sizes: PG7 (3-6.5mm) / PG9 (4-8mm) / PG11 (5-10mm) / PG13.5 (6-12mm) / PG16 (9-14mm) ) 5 sizes per set, &grave ; from 25. Durable material: The cable gland is made of high-quality PA6 fire protection. IP68 waterproof nylon and lock nut gaskets to seal your cables to ensure the cable’s alkali, acid, dust and shock resistance. [Adjustable Design] Adjustable cable connector, design is perfect for grip, waterproof and effortlessly sealed. The multi-thread design ensures quick and secure installation and a permanent locknut fit. Easy installation. Usage: the compressed cable gland; does not have to be dismantled. The cable entry can be inserted directly and then simply tightened. [Application] Nylon cable connector for all electrical devices, weather-resistant, such as sockets, switches, junction boxes, distributors and cable ties. Strong resistance to traction, will not damage cables or devices.