There is no flow plug to keep the water flowing. No leakage, quick connection of hose fittings, metal structure, and comfortable rubber handle. Including 6 female quick connects and 6 male quick connects, quick connect Standard 3/4 inch (about 1.9 cm) American threaded garden hose connection, very suitable for garden hoses and electric washing machines, RVs, ships or any place where there is a standard 3/4 inch (about 1.9 cm) garden hose connection , It can be used in conjunction with your , sprayer, nozzle, tree soaker, etc. Easy to connect and disconnect Garden hose connectors help you quickly connect and disconnect hoses in cold weather, without having to unscrew the hose. Note: Use for garden watering tools with a pressure lower than 60 PSI. If you have any questions about this product. internal thread: inner thread U.S. Standard 1.91 cm Colour: black Material: metal Package Contents: 6 x Female quick connector 6 x Male quick connector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.