UZZO Gardening Irrigation Good Assistant - 50Pc 360 Degree Adjustable Micro Drip Garden Irrigation Sprinklers Watering Emitter Watering Drip System on 1/4" Barb 1-70L/h Great for watering potted plants. Has a 1/4-inch barb thread connection. Suitable for 4mm/7mm(Inner/Outer diameter) tube Flow rate 1-70L/h