5 SizesThe cable gland kit includes 5 different sizes: M12 / PG7 (3-6.5mm); M16 / PG9 (4-8mm); M20 / PG13.5 (6-12mm); M25/PG21 (12-15mm) at IP68 level. Waterproof and durableThe boat weatherproof grommet is made of premium plastic fireproof dustproof durable aging resistant anti-impact and can be used for indoor and outdoor. Easy InstallationThe adjustable cable gland does not need to remove. Directly insert the cable joint and tighten. Connect the other end of the connectors to the housing of the devices. Wide range of applicationsThe cable gland closure is used for fixing cables cable connections mechanical control boxes panels electrical and electrical appliances. It can also be used in sunshine or rainy days. Contents: 5 * PG7 cable glands. 5 * PG9 cable glands. 5 * PG11 cable glands. 5 * PG13.5 cable glands. 5 * PG16 cable glands.