This listing is for a Mix of 15 black NPT 90 degree strain reliefs with gaskets and lock-nuts.Others may not include gasket and lock-nut, we do.Quantity 1 = 1 KitQuantity 2 = 2 Kits EtcYou Get The Following Per Kit5 X 3/8" 90 Deg - Cord diameter approx - 0.19" to 0.35", Mounting hole diameter - 0.66"5 X 1/2" 90 Deg - Cord diameter approx - 0.35" to 0.51", Mounting hole diameter - 0.83"5 X 3/4" 90 Deg - Cord diameter approx - 0.51" to 0.63", Mounting hole diameter - 1.03"•Full RoHS compliance•Superb relief against strain on cable•A wide range of cables will be accommodated•Nylon is 66.94V-2, UL approved•Fully certified IP 68 (Waterproof 1 cable per gland)Items are brand new industrial quality products.Items go by various names - Cord grip, Strain relief and Cable gland.Any questions please ask.Thanks for looking.Please see our other listings for similar products.