Quantity: each pack contains 4 pieces of 1/2 inch quick connectors and 2 pieces of double male hose connectors, the combination products are convenient for you to use. Material: the garden hose connectors are made of high quality ABS plastic, which is sturdy and durable; the plug can be inserted and taken out many times, suitable for long time use. 1/2 Inch quick connector: it is suitable for water pipes with inner diameter of 12 mm and outer diameter of 16 mm; it can not be installed directly on the faucet, should equipped with 1/2 inch conversion connector. Double male hose connector: suitable for the diameter of 1/2 inch hose; the double male connector connects two ends that can connect 2 tubes together in order to lengthen the tube and convenient for you to water plants. Functions: widely used in gardening irrigation, balcony watering flowers, garden irrigation, car washing, garden irrigation; it can also help you to create water supply systems for your home, garden and more other places. Package includes: 2 x Double Male Hose Connectors. 4 x End Quick Connectors.