Material: Made of high quality brass, strong and durable, not easy to wear, corrosion resistance, rust resistance and aging resistance. Be applicable: 1/2 inch hose connector, suitable for 4-point water pipes with an inner diameter of 12 mm and an outer diameter of about 16 mm. Use: The quick connector has a spring structure inside, which can be easily connected and disconnected without tools. It can be installed and removed safely by simply pulling it down. Application: It can be connected to pipes of the same size and various nozzles, sprinklers, and irrigation equipment. Can be used indoors and outdoors or in the garden. Used to quickly connect 1/2 inch garden hose connector, quick connector Specific: Material: Brass + Plastic + Steel Ball Specification: 1/2 inch (4 points) Quantity: 6 pieces Color: Yellow Inner diameter of the water pipe: 12 mm Outer diameter of the water pipe: 16 mm Supply content: 4 X Hose Connector