Features: This product is a mechanical timer. Its working principle is similars to the timer of a household fan. It relies on the user to rotate to set the timing time. Easy installation, water saving performances! Water is generally used low pressure. Garden water timer is perfect for the irrigation of your flower, plant, lawn, agriculture, villas, industrial irrigation. With the garden watering system, you save time and water every day. You don't have to worry about no one taking care of the garden on holiday. Easy to use. Garden watering can be easily controlled with a simple twist. Specifications: Materials: ABS Length: about 140mm/5.51inch Watering duration: 0-120 minutes Inlet: 3/4inch internal thread, 1inch external thread Package Includes: 1Pc Mechanical Water Timer note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.