Height 14.2 cm, Width 20 cm, Length 19.8 cm
From Amazon
HOZELOCK - Micro Irrigation Kit "Micro Kit" : Ideal for Watering Potted Plants and Hanging Baskets, Easy to Use, Supplied with 15m of Ø 4mm Hose and 15 Drippers for Precise Watering [7024 0000]
Wickes
Hozelock Automatic Garden Watering Micro Kit - Multi coloured