Valuable quantity: Cable glands kit has NPT 1/2" 5 packs in total. Adjustable range strain relief to cables and wires connecting to electrical equipment..Easy to install: Fits cable range 0.24in-0.47in(6-12mm); easily pass the cable through the gland then tighten the cap..High quality material: Made from nylon PA66 plastic which has superior heat resistance and abrasion resistance. Suitable for kinds of electrical application scenarios..High level waterproof: IP68 waterproof rating makes it ideal for your project request. Also equipped with rubber gasket for good sealing performance..Various usage: Grey nylon cable glands are used on cable fixing, junction box connection, distribution panels, and electrical appliances etc. NOTE: Nuts have built-in slot for self locking which is reliable for dynamic operation without falling off. Please do not tighten it fully before installation.