Different sizes: PG7 (3-6.5 mm) / PG9 (4-8 mm) / PG11 (5-10 mm) / PG13.5 (6-12 mm) / PG16 (9-14 mm) 5 sizes for pack of 25. Durable material: the electrical cable glands use high quality waterproof nylon protection and locking nut washer to seal around your wires, ensure the safety of acid alkaline, dustproof and shockproof of the cable. 【Adjustable Design】Adjustable cable joints designed for grip perfect fit and an effortless seal. Multi-threaded design ensures fast, secure mounting and permanent fitting of the cap nut. Easy to use: compression glands do not require disassembly. The cable entry can be inserted directly and then easily tightened. 【Application】Nylon cable connector for all weatherproof electrical equipment such as sockets, switches, junction boxes, distribution boards and cable fixings, etc. Strong resistance to stretching, will not damage cables or devices. Color:White Press- adjustable electrical cable glands made of fire-resistant and waterproof plastic to help you