360 degree irrigation angle, suitable for 4/7 mm tube (inner/outer diameter). H: 13 cm, UV resistant plastic Maximum drip irrigation spray up to 120 l/h, 0.5 m distance, 50 stakes can water a larger area automatically Adjustable water flow. Adjustable flow rate from 0 to 13 gallons per hour, suitable for pots, tubs, ground cover, landscape gardens, etc. Original PE plastic irrigation spikes, lightweight, anti-acid and alkali, anti-corrosive, low temperature resistant, odorless, durable and long service life in the soil Maximum drip irrigation spray up to 120L/H, 0.5m distance, 50 spikes can water a larger area automatically