Flexible: Red adjustable 8 hole drippers. Adjustable flow range: 1-70 l/h; Interface Specification: 4mm, can work with 4/7mm T connectors; the dripper can be disassembled for cleaning, the sprinkler flow can be freely adjusted by turning the red cap. Pipe Stakes: Made of quality plastic, these C-shaped pegs can be used to fix 4/7mm emitters, nozzles and T-connectors, its total length is about 11cm. Wide Applications: This automatic irrigation kit is ideal for spraying, lawn, patios, gardens, vegetables, strawberries, potted plants, irrigation, roof cooling, agriculture, greenhouse, flower pots, irrigation, etc. T-connectors : Made of plastic, this 34.5mm 3-way T-connector can work with 4/7mm (diameter) hose, the barbed design can effectively prevent them from coming off from the hose and micro nozzle, it is normally used for drip system and sprinkler system. Package Content: 150pcs irrigation kits a u total including 50 adjustable misting nozzles and 50 4/7mm barbed T-connectors, and 50 0.6cm C-shape tube holders. Very easy to assemble, you can start watering your plants.